Gardening FAQs

Welcome to the Anderson's Seed & Garden FAQ page! We’ve compiled our top tips to help you keep your Cache Valley landscape thriving through the fall and prepared for the winter months.

Spring-Flowering Bulbs

Is October too late to plant bulbs in Northern Utah?

Not at all! October is prime planting time in Cache Valley because the soil is cooling but remains workable. You can plant tulips, daffodils, and crocus until the ground completely freezes. A frosty morning does not mean planting season is over.

How deep and far apart should I plant tulips?

Depth varies by bulb size, but a general rule is to plant them 2 to 3 times as deep as the bulb is tall, always with the pointed end up. For a brilliant display, plant clusters of 5-9 bulbs per square foot rather than scattering them individually.

How can I ensure continuous spring blooms?

Plan your garden by bloom time rather than just color. Start with early snowdrops (which can bloom right through the snow!), follow up with crocus, and finish with early, mid-season, and late-blooming tulips and daffodils.

Are any spring bulbs deer-resistant?

Daffodils are generally much less attractive to deer than tulips. However, keep in mind that when animals are hungry enough during a harsh winter, no landscape plant is entirely deer-proof.

Vegetables & Soil Care

When and how do I harvest winter squash?

Harvest mature squash before a hard freeze, as freezing temperatures drastically reduce their storage life. Look for full color, a hardened rind, and drying stems. Cut them from the vine rather than pulling, and cure them in a warm, dry place before long-term storage.

How should I store onions and potatoes?

Store only sound, mature produce. Keep properly cured onions dry with good ventilation. Potatoes prefer cool, dark conditions with enough humidity to prevent shriveling. Never store damaged produce with your long-term keepers.

What should I add to my vegetable garden soil in the fall?

Fall is excellent for working in compost, leaves, or grass clippings. Because breaking down organic matter requires energy, adding a nitrogen source helps assist decomposition. Use a soil test to guide any other nutrient amendments.

Lawn Care & Watering

How long should I keep watering in the fall?

Continue watering trees, lawns, and shrubs as needed while the soil remains unfrozen, especially during a dry autumn. Newly planted trees and evergreens desperately need this moisture to survive winter stress.

Should I aerate and fertilize my lawn in October?

Yes! Core aeration is highly beneficial in early-to-mid October to relieve soil compaction while the turf is still growing. Late October through November is the ideal window to apply Anderson's Step 5 Winterizer fertilizer to build strong winter roots.

How short should I mow before winter?

Gradually lower your mower height as the season ends. Avoid suddenly scalping the grass; leave it at a clean, appropriate height to prevent snow mold and winter damage.

Is fall a good time to reseed or overseed my lawn?

Yes, it is the best time! Early fall (late August through September) provides the perfect combination of warm soil for quick germination and cooler air temperatures that are less stressful for new cool-season grasses. If you miss this window, you can also try "dormant seeding" in late fall just before the ground freezes, which allows the seeds to lie dormant under the snow and germinate first thing in the early spring.

Do I need to water my lawn during the winter if there isn't any snow?

Occasionally, yes. While your lawn goes dormant in the winter, a prolonged dry, snowless period can cause the root systems and grass crowns to desiccate (dry out) and die. If Cache Valley experiences a dry spell lasting three to four weeks with no snow cover and above-freezing daytime temperatures, give your lawn a deep soak during the warmest part of the day to protect the turf's crowns.

Winterizing & Maintenance

When should I winterize my sprinkler system?

Winterize before sustained freezing weather hits Cache Valley. Disconnect garden hoses, protect outdoor faucets, and blow out your irrigation lines early in October to avoid unexpected freeze damage.

Should I spray my fruit trees in the fall?

Focus mostly on sanitation by removing diseased or mummified fruit from the ground. While dormant sprays are useful for certain pests, always diagnose the specific issue first and follow the product label.

Should I cut back my perennials before winter?

It depends! You should remove diseased foliage, but leaving healthy perennial stalks intact provides beautiful winter interest, protects the plant's crown from deep freezes, and offers vital habitat for beneficial overwintering insects.

Is fall a good time to prune trees and shrubs?

Generally, no. Heavy pruning in the fall can stimulate new growth that won't have time to harden off before freezing. Wait until late winter or early spring when your plants are fully dormant.

Should I apply mulch to my garden beds right now?

Yes! A 2-3 inch layer of mulch applied after the first hard freeze helps regulate soil temperature, prevents roots from frost-heaving, and retains essential winter moisture.

Planting & Plant Protection

Is fall a good time to plant new trees and shrubs?

Yes! Early to mid-fall is actually one of the best times to plant many trees and shrubs in Cache Valley. The cooler air temperatures reduce stress on the plant canopy, while the soil is still warm enough to encourage strong root development before winter sets in. Just make sure to water them consistently until the ground freezes.

How should I prepare my roses for a cold winter?

Stop fertilizing your roses by late summer to discourage tender new growth. After the first few hard frosts, mound soil or compost around the base of the plant (about 8-12 inches high) to protect the sensitive graft union. Wait until spring for heavy pruning; only trim excessively long canes in the fall to prevent them from snapping in heavy winter winds.

Can I leave fallen leaves on my lawn over the winter?

While you should remove excessive leaf accumulation that can smother your grass and invite snow mold, you don't necessarily have to bag them all. If the leaf layer is light, use your lawnmower to chop dry leaves into fine pieces directly on the grass. This acts as a natural mulch, returning valuable organic matter and nutrients back to your lawn. Rake thicker layers into your garden beds or compost pile.

What should I do with my potted outdoor plants?

Tender perennials and tropicals should be brought indoors before the first frost. Inspect them carefully for pests before bringing them inside. For hardy plants left in outdoor containers, remember that their roots are much more exposed to freezing temperatures than plants in the ground. Move these pots to a sheltered location, like an unheated garage or up against the house, and water them sparingly throughout the winter.

August 2027 Gardening FAQs

What can I plant in August in Cache Valley, Utah?

August is not the end of the vegetable-gardening season. Fast-growing, cool-season crops such as spinach, lettuce and radishes can be planted for fall harvest, especially as nights begin cooling later in the month.

Anderson's Cache Valley Tip: August gardeners should start thinking about fall while everyone else is still thinking about harvest.

Is August too late to start a vegetable garden in Northern Utah?

Not necessarily. It is too late for many long-season warm crops, but there is still time for quick-maturing vegetables that prefer cooler weather. Look at the days-to-maturity on the seed planting guide and leave yourself some margin for shortening days and cooler fall temperatures. In Cache Valley, frost risk becomes increasingly important as September approaches.

Why are my squash and cucumber leaves turning white in August?

A white or gray powdery coating appearing on older leaves is often powdery mildew. It commonly becomes noticeable later in summer when plants are mature and conditions favor disease development.

Before treating, make sure the white coloration is actually disease - some squash varieties naturally have silvery markings on their leaves.

How can I control powdery mildew on squash, pumpkins and cucumbers?

Start early. Remove badly infected leaves when practical, improve air circulation, avoid unnecessarily wetting foliage, and use an appropriate fungicide according to its label if disease pressure warrants treatment. Preventive or early applications generally work better than waiting until most of the plant is covered.

Anderson's currently highlights Fungi 5 for this problem in the August calendar.

Why are spider mites so bad in August?

Spider mites thrive during hot, dry weather, so late summer is prime time for outbreaks. Look for fine stippling or bronzing on leaves and inspect the undersides closely; heavy infestations may produce fine webbing. Beans and other garden plants can decline surprisingly quickly once mite populations explode.

How do I get rid of spider mites in my garden

Begin by confirming that mites are really the problem. A strong spray of water can physically knock some mites off sturdy plants, while severe infestations may require a labeled insecticidal soap, horticultural oil or other miticide/insecticide appropriate for the plant. Coverage of leaf undersides matters. Avoid repeatedly using products that kill beneficial insects without controlling mites effectively.

How do I keep raccoons out of my sweet corn?

Raccoons are remarkably persistent once they discover ripening corn. Physical exclusion is usually the most dependable approach, but repellents and trapping may also be options depending on the site and local rules.

Anderson's Cache Valley Tip: Start before the raccoons learn that your corn patch is an all-you-can-eat buffet.

When should I stop fertilizing roses in Cache Valley?

The Anderson's calendar places the final rose-fertilizer application in early August. The goal is to avoid pushing excessive tender growth late in the season when plants should gradually begin preparing for cold weather. Continue normal care, but late-season heavy nitrogen feeding is generally not the goal as fall approaches.

When are onions ready to harvest in Utah?

Onions are generally approaching harvest when the tops naturally begin to fall over and dry down. After lifting the bulbs, cure them in a dry, well-ventilated location before long-term storage. Thick-necked, damaged or soft bulbs should usually be used first instead of stored for months.

How do I know when potatoes are ready to harvest?

For mature storage potatoes, wait until the vines begin yellowing and dying back. Once tops are mostly dead, allowing a little additional time before digging can help skins toughen. Harvest carefully to avoid cutting or bruising tubers, and keep harvested potatoes out of bright sunlight.

Can I start onions from seed in August for next year?

Yes. Anderson's recommends starting onion seed in August and overwintering the young plants for an early start the following season.

The details matter: variety selection, seedling size going into winter, protection and the exact overwintering method all affect success.

When is the best time to seed a new lawn in Cache Valley?

Late August into early September is often an excellent period for establishing cool-season turf. Soil is still warm enough for germination while nights are becoming cooler, and young grass has time to establish before winter if planting is not delayed too long.

Anderson's Cache Valley Tip: Warm soil + cooler nights is a combination grass seed likes

Why is fall better than spring for planting grass seed in Northern Utah?

Fall establishment often gives cool-season turf an advantage because soil remains warm while air temperatures moderate. There can also be less competition from some warm-season annual weeds than during spring establishment. The biggest Cache Valley caution is waiting too long: seedlings need enough growing time to establish before persistent freezing weather.

Can I kill lawn weeds in August?

Yes, but temperature matters. Many lawn herbicides are poor choices during extreme heat because turf may already be stressed and certain products have temperature restrictions or precautions. Anderson's calendar intentionally waits until cooler nights return before emphasizing Weed Free Zone again.

Always follow the specific product label rather than relying on a universal calendar date.

Why do I see more spiders around my house in late summer?

Late summer and early fall are periods when many spiders are more noticeable as adults become active and wander in search of mates, food or shelter. Reducing clutter near foundations, sealing entry points and using monitoring traps can help determine where activity is occurring.

How do I keep spiders and other crawling insects from coming indoors in the fall?

Start with exclusion: repair door sweeps, seal obvious cracks, reduce hiding places around the foundation and keep vegetation from creating easy pathways into the structure. Sticky traps can help monitor indoor activity. Exterior insect-control products may also be useful when applied according to their labels, but preventing entry should be part of the strategy rather than relying only on spraying.

What can I do about wasps around my patio or barbecue in August?

Late summer is often when wasp activity feels most intense because colonies have grown large and workers are actively searching for food. Keep sugary drinks, meat scraps and garbage covered, identify where wasps are traveling, and be cautious around nests. Large or difficult nests may be better handled professionally.

When should I plant garlic in Cache Valley?

Garlic may arrive in stores in late August, but arrival time is not necessarily the same as planting time. Garlic is typically planted in fall so cloves can establish roots before winter and resume growth early in spring. Buying early gives gardeners the best variety selection, while planting generally waits until appropriate fall conditions.

September 2027 Gardening FAQs

What should I be doing in my Cache Valley garden in September?

September is a transition month between summer harvest and fall preparation. Keep harvesting warm-season vegetables, watch for early frost, plant garlic and spring-flowering bulbs as conditions become suitable, establish or repair lawns, manage broadleaf lawn weeds during favorable weather, and begin perennial cleanup. It is also a good month to evaluate what worked in the garden and prepare plants and soil for colder weather.

When is the best time to plant grass seed in Cache Valley?

Late August through September is generally one of the best windows for establishing cool-season lawns in Cache Valley. Warm soil encourages germination while cooler air temperatures reduce stress on new seedlings. The exact cutoff depends on grass species, weather and location in the valley, so earlier establishment is safer than waiting until cold weather is close.

Can I overseed an existing lawn in September?

Yes. September can be an excellent time to thicken a thin cool-season lawn. Mow appropriately, remove excessive thatch or debris, create good seed-to-soil contact, select grass seed suited to the site, and keep the seedbed consistently moist during germination. Reduce watering frequency as seedlings establish.

How long should I wait to reseed after applying lawn weed killer?

There is no single waiting period that applies to every herbicide. The Anderson's calendar uses a 10-14 day interval in its lawn-care program, but the product label must control the recommendation. Some herbicides require a longer interval before seeding, and newly seeded lawns may also need to become established before certain herbicides can be used.

Should I fertilize my lawn in September in Northern Utah?

September is an important feeding period for cool-season lawns. As summer heat moderates, turf resumes active growth and can use nutrients to rebuild density and root reserves. The correct fertilizer and rate depend on the lawn, soil conditions and previous applications. Avoid assuming that more fertilizer is always better.

What is the difference between fall lawn fertilizer and winterizer?

A fall fertilizer supports turf while it is actively growing and recovering from summer stress. A later-season winterizer is timed closer to the end of the growing season and is intended to support the plant as it prepares for winter and the following spring. Product formulations vary, so timing and application rates should follow the specific fertilizer program and label.

Is September a good time to aerate a lawn in Utah?

Yes. Core aeration is often useful while cool-season turf is actively growing because the lawn can recover from the process. Aeration can reduce soil compaction and improve movement of air and water into the root zone. It is especially useful on compacted, heavily used or poorly infiltrating lawns.

How do I repair a lawn damaged by summer heat?

First determine whether the grass is dormant, thin or actually dead. Correct irrigation problems, aerate compacted soil if needed, remove dead material where necessary, overseed thin areas during the fall

establishment window, and fertilize appropriately. Identifying the reason for the damage matters; insects, disease, irrigation coverage and soil problems can all look like simple heat stress.

How do I prevent vole damage to my lawn during winter?

Reduce the protected habitat voles prefer by keeping grass and weeds from becoming excessively tall going into winter and cleaning up dense vegetation where practical. Monitor areas that have had previous damage. Because control options and pesticide labels can change, specific bait or control recommendations should be verified before use.

When should I plant garlic in Cache Valley?

Garlic is normally planted in fall so cloves can establish roots before winter and then resume growth early in spring. September is a good time to purchase garlic while variety selection is strong, although actual planting can wait until fall conditions are appropriate. Plant healthy cloves in well-drained soil with the pointed end up.

What garlic varieties grow well in Northern Utah?

Both hardneck and softneck garlic can be grown in Utah, but varieties differ in cold tolerance, flavor, clove size, storage life and harvest timing. Anderson's carries a broad garlic selection, so this FAQ is a good place to help customers choose varieties based on whether they value large cloves, strong flavor, scapes or long storage.

When should I plant tulips and daffodils in Utah?

Spring-flowering bulbs are planted in fall. Purchase them while selection is good, then plant once soils have cooled but before the ground freezes. Cache Valley gardeners usually have considerably more planting time after the first frost than many people assume.

Do I plant spring-flowering bulbs before or after the first frost?

Either can work depending on soil temperature and weather, but the first frost is not a deadline. In Cache Valley, a light frost may arrive while the soil is still very workable. Anderson's uses the first frost as a practical signal that bulb-planting season is underway, not as an indication that the ground is frozen.

How deep should I plant tulips, daffodils and other fall bulbs?

Planting depth depends on bulb size and species. Larger bulbs such as tulips and daffodils are planted deeper than small bulbs such as crocus. Follow the planting depth recommended for the specific bulb, measure from the soil surface to the base of the bulb, and plant in well-drained soil.

Why should I plant bulbs in clusters instead of rows

Clusters or drifts usually create a stronger landscape display than isolated bulbs planted one at a time. Grouping several bulbs of the same variety produces a larger block of color, while combining varieties with different bloom periods can extend the spring show.

How can I get green tomatoes to ripen before a Cache Valley frost?

As fall approaches, focus the plant's remaining energy on existing fruit rather than new growth. Avoid excessive late-season nitrogen, consider removing new flowers and very small fruit that have little chance to mature, and protect plants during light frosts when worthwhile. Mature green tomatoes can also be harvested before a hard freeze and ripened indoors.

When is the first fall frost in Cache Valley, Utah?

There is no single reliable frost date for every Cache Valley garden. Elevation, slope, cold-air drainage and neighborhood microclimates can produce meaningful differences over short distances. Historical average frost dates are useful for planning, but gardeners should watch the actual forecast and be prepared with frost protection as September progresses.

Should I cut back perennials in the fall or leave them until spring?

It depends on the plant. Diseased or badly damaged foliage is often best removed, while healthy stems and seed heads can sometimes provide winter interest, wildlife value and protection for beneficial insects. Some perennials are easier to identify and clean up in spring. Avoid treating every perennial exactly the same.

October 2027 Gardening FAQs

What should I do in my Cache Valley garden in October?

October is prime time for planting spring-flowering bulbs, harvesting and storing winter vegetables, preparing lawns for winter, continuing fall watering, improving garden soil and winterizing irrigation equipment. The first frost does not mean gardening is finished; many fall jobs continue until the soil actually freezes.

Is October too late to plant bulbs in Northern Utah?

Usually not. October is often an excellent bulb-planting month in Cache Valley because soils are cooling but remain workable. Tulips, daffodils, crocus and other spring-flowering bulbs can generally be planted until the ground freezes. Buying earlier may provide a better variety selection.

When is the best time to plant tulips in Cache Valley?

Tulips are planted in fall after soil temperatures have cooled and before the ground freezes. October commonly provides very good planting conditions in Cache Valley. Planting after cooler weather arrives helps bulbs begin the chilling period they need without encouraging unnecessary top growth.

How deep and how far apart should I plant tulip bulbs?

Planting recommendations vary with bulb size and the effect you want in the landscape. Tulips are typically planted several inches deep and can be spaced more closely for a concentrated display or farther apart for a naturalized effect. Follow the depth guidance for the specific bulbs and plant with the pointed end up.

How many bulbs should I plant together for the best display?

More bulbs generally create a stronger visual impact. Anderson's calendar suggests roughly 5-9 bulbs per square foot for intense color, depending on bulb size. Rather than scattering individual bulbs around a bed, use groups, drifts or repeated clusters to create deliberate blocks of spring color.

How can I have spring bulbs blooming from March through May?

Choose several bulb species and varieties with different bloom periods. Early bulbs such as snowdrops and crocus can begin the season, followed by early, midseason and late tulips, daffodils and other bulbs. Planning by bloom time rather than choosing everything for color alone can keep a landscape changing for much of spring.

What spring bulbs are deer resistant

Daffodils are generally much less attractive to deer than tulips. Tulips are frequently browsed where deer pressure is high. Other bulb choices may also be less palatable, but no landscape plant should be considered completely deer-proof when animals are hungry

Can snowdrops really bloom through snow in Cache Valley?

Yes. Snowdrops are among the earliest spring-flowering bulbs and can flower while snow is still present or shortly after it melts. They are useful for gardeners who want very early color and can work well in protected Cache Valley sites where the soil drains properly.

When should I harvest winter squash in Utah?

Harvest mature winter squash before a hard freeze. A light frost may not immediately ruin mature fruit, but freezing temperatures can damage squash and reduce storage life. Look for mature color, a hardened rind and drying stems, then cut fruit from the vine rather than pulling it off.

How should I cure and store winter squash for winter?

Handle squash carefully to avoid bruising and cuts. Many winter squash types benefit from a warm, dry curing period before storage, although curing requirements vary by type. Store sound fruit in a cool, dry, well-ventilated location and inspect it periodically so damaged fruit can be used before decay spreads.

How should I store onions and potatoes for winter?

Store only sound, mature produce. Onions should be properly cured and kept dry with good ventilation. Potatoes prefer cool, dark conditions with adequate humidity and should be protected from light, which can cause greening. Do not store damaged produce with your best long-term keepers.

How long should I keep watering trees in the fall?

Continue watering trees as needed while the soil remains unfrozen, particularly if autumn is dry. Newly planted trees and evergreens deserve special attention because they enter winter with a relatively limited root system or foliage that continues losing moisture. Reduce irrigation as weather cools, but do not automatically stop simply because leaves are falling.

Do evergreen trees need water before a Cache Valley winter?

Yes, especially during a dry fall. Evergreens retain foliage through winter and can lose moisture when roots cannot replace it from frozen or dry soil. Adequate soil moisture before freeze-up can reduce winter moisture stress. Newly planted evergreens are particularly important to monitor.

Should I aerate my lawn in October?

Core aeration can still be beneficial in early to mid-October while cool-season turf is actively growing and the soil is workable. Do not wait until the ground is frozen. Aeration is most valuable where soil is compacted, water infiltration is poor or the lawn receives heavy traffic.

How short should I mow my lawn before winter?

Avoid suddenly scalping the lawn at the final mowing. Anderson's calendar recommends gradually lowering the mower height as the season winds down. Continue mowing while grass is growing, remove excessive leaf accumulation, and leave the lawn at an appropriate height for the grass type going into winter.

When should I apply winterizer fertilizer to my lawn in Northern Utah?

Late fall is an important fertilization period for cool-season lawns, but timing should be based on turf growth, weather and the fertilizer being used rather than a date alone. Anderson's lawn-care calendar places its Step 5 Winterizer in late October through November. Apply at the labeled rate and account for fertilizer already applied earlier in the season.

What should I add to my vegetable garden soil in the fall?

Fall is an excellent time to add well-finished compost or other organic matter like straw, sawdust or wood shavings, leaves, grass clippings and incorporate it where appropriate. Soil-test results should guide fertilizer, humate, sulfur or other nutrient amendments rather than adding products automatically, however nitrogen is

usually needed to assist in the decomposition of the additional organic matter. Anderson's calendar also emphasizes fall organic matter and soil preparation after harvest.

When should I winterize my sprinkler system and garden hoses in Cache Valley?

Winterize before sustained freezing weather can damage exposed plumbing, valves, hoses or irrigation components. Disconnect and drain garden hoses, protect outdoor faucets as appropriate, and follow the manufacturer's procedure for your irrigation system. Cache Valley weather can turn quickly in October, so this is a job that is better done a little early than after the first damaging freeze.

Should I spray fruit trees in the fall for insects and diseases?

Fall sanitation is important, but there is no single spray that every fruit tree needs. Remove diseased or mummified fruit and clean up relevant infected debris. Dormant or delayed-dormant treatments are useful for certain pests and diseases, but the correct material and timing depend on the crop and problem. Diagnose the issue first and follow the current product label.

When is the ground too frozen to plant bulbs?

The planting window ends when soil is frozen deeply enough that you can no longer dig and properly cover the bulbs. A frosty morning or the first fall frost does not mean the soil is frozen. In many Cache Valley years, gardeners can continue planting bulbs well after the first frost.