Garden Notes October 2026

In Zones 8a and 8b, October signals the full onset of fall gardening. Temperatures cool, days shorten, and the risk of frost begins to increase in 8a by late October. This month is ideal for planting fall and winter crops, protecting tender plants, maintaining fruits and perennials, and preparing your garden for winter.

Zone 8a Average Last Spring Frost April 1-15 / Average First Fall Frost Nov 1-15

Zone 8b Average Last Spring Frost March 15-April 1 / Average First Fall Frost Nov 15-25

ALWAYS REMEMBER:
All dates are contingent on weather. Keep a close eye on conditions and adjust as needed.

🌞 VEGETABLE GARDEN – OCTOBER

🌱 Direct Sow (Fall & Winter Crops)

• Lettuce

• Spinach

• Kale

• Collards

• Mustard greens

• Arugula

• Radishes

• Beets

• Carrots

• Turnips

• Garlic (late October in 8a, now in 8b)

• Onions for overwintering

Tip: Use row covers in early October to extend the growing season in 8a if early frosts threaten.

🌿 Transplant

• Broccoli, cabbage, cauliflower, and Brussels sprouts seedlings for fall/winter harvest.

• Leafy greens from trays can be transplanted into beds.

• Herbs like parsley, cilantro, and oregano can be moved to sheltered areas.

🥬 Harvest & Maintain

• Continue harvesting remaining warm-season vegetables: tomatoes, peppers, squash, cucumbers, and beans.

• Remove spent crops to reduce disease and insect pressure.

• Mulch garden beds to retain warmth and moisture.

🍓 FRUIT CARE – OCTOBER

• Harvest late figs, persimmons, blackberries, and grapes.

• Remove fallen fruit to reduce pests and fungal problems.

• Protect tender fruit trees in 8a if early frost threatens.

• Light pruning of summer-fruiting berries after harvest.

🌸 FLOWERS – OCTOBER

Plant & Maintain

• Fall annuals: pansies, snapdragons, calendula, ornamental kale.

• Perennials: continue to enjoy late-blooming coneflowers, black-eyed susans, blanket flowers, and bee balm.

Maintenance

• Deadhead spent flowers to encourage continued bloom.

• Apply a light layer of mulch to protect roots from fluctuating temperatures.

🐝 POLLINATOR SUPPORT

• Continue fall-blooming perennials and herbs for late-season pollinators.

• Allow herbs like basil, oregano, and thyme to flower if you want to support bees.

• Avoid chemical sprays during bloom.

✂️ PRUNING & FALL TASKS

Shrubs & Perennials

• Cut back summer perennials that are done blooming.

• Lightly shape shrubs before winter.

Roses

• Remove spent flowers and diseased foliage.

• Apply winter fertilizer if desired.

Fruit Trees

• Finish pruning summer-fruiting trees after harvest.

• Begin preparing trees and bushes for winter protection (mulch, fencing, frost cloths).

🐛 PEST WATCH – OCTOBER

• Slower pest activity as temperatures cool, but continue checking:

  • Aphids

  • Spider mites

  • Overwintering squash bugs

  • Tomato hornworms in late crops

• Remove crop debris to reduce overwintering pests.

💧 WATER & MULCH

• Reduce watering as temperatures drop but maintain soil moisture for fall crops.

• Apply 2–3 inches of mulch to conserve warmth and moisture.

• Protect tender crops in 8a with row covers or cloches for frost nights.

🌡️ WEATHER CONTINGENCIES

Early Frost in 8a

• Cover tomatoes, peppers, and late crops overnight.

• Move potted plants indoors or under protection.

Cool, Wet Weather

• Monitor for fungal disease in leafy greens.

• Avoid overhead watering when possible.

🗓️ October Planning

• Complete planting of garlic and overwintering onions.

• Prepare garden beds for winter: mulch heavily, remove spent summer crops, and compost debris.

• Plan succession planting for leafy greens if extending fall/winter harvest.