Winter-to-Spring Garden Transition Calendar

By Thehomesprouts Team · October 12, 2026

Planning Your Garden Transition

The transition from winter dormancy to spring growth is the most critical period in the garden calendar. Rushing to plant too early risks frost damage; waiting too late means missing optimal growing windows. This calendar provides a structured approach for temperate-climate gardeners (zones 5-7). Adjust timing by 2-3 weeks for warmer or colder zones.

January: Planning and Preparation

Order seeds from catalogs — popular varieties sell out by February
Inventory and clean seed-starting supplies (trays, domes, grow lights)
Prune dormant deciduous trees and shrubs (except spring-flowering varieties)
Check stored bulbs and tubers for rot or dehydration
Review garden journal from last year: what worked, what didn't
Test soil pH and nutrient levels with a home test kit

February: Early Starts

Start slow-growing seeds indoors: onions, celery, parsley, and perennial flowers
Force branches of forsythia, cherry, and quince for early indoor blooms
Prepare garden beds on dry days: remove debris, add compost, turn cover crops
Sharpen and oil garden tools for the season ahead
Begin hardening off overwintered plants on mild days
Start tuberous begonias and dahlias indoors in pots

March: The Push to Spring

Start tomatoes, peppers, and eggplants indoors (6-8 weeks before last frost)
Direct-sow cold-hardy crops outdoors: peas, spinach, radishes, lettuce
Apply dormant oil spray to fruit trees before bud break
Divide and transplant perennials as new growth emerges
Remove winter mulch from beds gradually as soil warms
Start hardening off indoor seedlings (bring outside for increasing periods)
Plant bare-root trees and shrubs while still dormant

April: Spring Is Here

Direct-sow beans, corn, squash after last frost date
Transplant hardened-off seedlings to the garden
Plant summer-blooming bulbs: gladiolus, lilies, dahlias
Begin regular fertilizing schedule for active growth
Install trellises, stakes, and supports before plants need them

Key Dates to Know

Find your local last frost date (USDA zone map or local extension service) and count backward for indoor seed-starting dates. This single number anchors your entire spring calendar.