April is the month the garden fills up, and the garden tasks in April are a race between enthusiasm and the last frost. Beds that were empty in March are suddenly full of seedlings, the first asparagus is cut, and every warm afternoon tempts you to plant out tender crops a week too early. The trick is to know your zone band and plant to it, not to the weather on any single day. This guide splits the work into cold zones 1–4, temperate zones 5–7, warm zones 8–10, and frost-free zones 11–13. Frost dates are given only as averages and ranges, never as exact dates for a particular place, and zones 11–13 are frost-free, so their calendar runs on heat and rain instead. Before you act on any timing here, check your local extension service for the frost dates and sowing windows that fit your area.
Cold zones 1–4: sow indoors, sow hardy crops out, and wait on tender plants
In zones 1–4, average last frost dates fall roughly from late May into June, so April is still a waiting game for tender crops, but hardy sowing begins. Seed starting indoors continues for tomatoes, peppers, eggplant, cucumbers, squash, lettuce and herbs, and you can start sweet corn and melons indoors late in the month for a head start. Keep lights close and pot on seedlings that outgrow their cells. Use our seed-starting calculator to check your dates, and see the cucumber growing guide for what those seedlings will need later.
Direct sowing outdoors opens for the hardiest crops: peas, broad beans, lettuce, spinach, kale, radishes, beets, carrots, turnips and onions in zone 4, and peas and spinach under cover in zones 1–3. Sow in rows, thin ruthlessly, and protect early sowings with fleece on cold nights. Transplanting outside is limited to hardy seedlings — broccoli, cabbage, cauliflower, lettuce and onions — hardened off for a week first and set out under cover. Tender crops stay indoors all month. Pruning should be finished early in April before buds break; after that, prune only dead or damaged wood. Fertilising is light: top-dress fruit trees and roses with compost, and feed nothing that is still dormant. Pest and disease watch means slugs, which appear with the first warm, wet weather and can strip young seedlings overnight. Go out after dark with a torch, hand-pick them, and protect precious seedlings with copper tape or beer traps. Watering outdoors begins in earnest as beds dry in spring sun: water new sowings gently, water in the morning, and avoid watering frozen or sodden soil. Harvesting is still thin but improving: overwintered leeks, parsnips, rhubarb and the first asparagus in zone 4, plus herbs indoors. Soil and compost work is central: dig in compost, fork beds lightly, mulch bare soil, and sow green manures on beds resting until summer. Houseplant care is full spring care now: repot root-bound plants, resume regular feeding, move plants to brighter spots, and watch for aphids on soft new growth.
Temperate zones 5–7: harden off, plant out hardy crops, and sow warm-season crops indoors
Zones 5–7, with average last frost dates generally from mid-April to mid-May, make April the hardening-off month. Seed starting indoors continues for cucumbers, squash, melons, sweet corn and beans, while tomatoes and peppers sown in February and March should be potted on and hardened off gradually. Start herbs such as basil indoors now so they are ready for warm weather.
Direct sowing outdoors is wide open for hardy crops: peas, lettuce, spinach, kale, radishes, beets, carrots, turnips, onions and potatoes all go in, and in zone 7 you can sow beans and sweet corn late in the month once the soil has warmed. Succession sow lettuce and radishes every two weeks. Transplanting is busy: set out broccoli, cabbage, cauliflower, lettuce, kale and onion seedlings, and in zone 7 plant out tomatoes, peppers and eggplant late in the month after the average last frost, with fleece handy for a cold night. See the kale growing guide and cabbage growing guide for spacing. Pruning is mostly done, but deadhead spring bulbs as they fade, cut back dead perennial stems, and do not prune spring-flowering shrubs until after they bloom. Fertilising steps up: feed roses, fruit trees, lawns and vegetable beds, side-dressing with compost or a balanced feed, and feed container plants that are growing fast. Pest and disease watch means slugs and snails on seedlings, aphids on roses and broad beans, cabbage worms on brassicas, and early signs of black spot on roses after rain. Watering matters as April sun dries beds: water new transplants deeply, water in the morning, and mulch to hold moisture. Harvesting is generous for spring: asparagus, rhubarb, lettuce, spinach, radishes, spring onions and herbs, and our harvest date calculator can help judge readiness. Soil and compost work means mulching beds, turning the heap, and adding compost to beds between crops. Houseplants can go outside on warm days for a wash, but bring them in at night until frost risk has passed, and feed them regularly now that they are growing.
Warm zones 8–10: tender crops out, summer sowing, and the first heat
In zones 8–10, average last frost dates run roughly from late January in zone 10 to mid-March in zone 8, so by April the frost season is over and the garden is in full summer mode. Seed starting indoors is nearly done for warm-season crops, though you can still start okra, melons and late cucumbers, and start fall tomatoes indoors late in the month in zones 9–10 for a second crop.
Direct sowing is all warm-season crops now: beans, squash, zucchini, cucumbers, corn, okra, melons, sweet potatoes and herbs, with lettuce and spinach sown only in shade and harvested young. Transplanting is the main job: plant out tomatoes, peppers, eggplant, basil and cucurbits if you have not already, stake tomatoes at planting time, and set out sweet potato slips. See the zucchini growing guide and green bean growing guide for spacing and support. Pruning is light: deadhead spring flowers, cut back frost-damaged growth, shape shrubs after flowering, and pinch out tomato side shoots on tall varieties. Our pruning calendar covers the timing. Fertilising is regular: feed vegetables every few weeks, feed roses and citrus, and side-dress corn and squash as they grow fast. Pest and disease watch is serious in April: aphids, whiteflies, cucumber beetles, squash vine borers and early blight all appear as temperatures rise, so inspect plants weekly, remove affected leaves, and encourage beneficial insects. Watering becomes a daily consideration: water deeply in the morning, mulch thickly, and watch containers, which dry fast. Harvesting is abundant: peas, lettuce, broccoli, carrots, beets, herbs, strawberries and the first zucchini in zone 10. Soil and compost work means mulching heavily before summer heat, turning the heap, and adding compost between plantings. Houseplants are mostly outside now in this band, and April is a good month to repot, divide and feed them.
Frost-free zones 11–13: heat management and tropical planting
Zones 11–13 are frost-free, so April has no frost dates to plan around. The work is heat management: shade leafy crops, mulch heavily, and water deeply. Seed starting is direct for most crops, but keep starting tomatoes, peppers and eggplant in trays, and sow heat-tolerant greens such as amaranth and Malabar spinach as lettuce bolts.
Direct sowing covers beans, corn, squash, cucumbers, melons, okra, sweet potatoes, carrots, beets, herbs and tropical vegetables. Transplanting is continuous: set out tomatoes, peppers, eggplant, basil, cucumbers and tropical fruit trees, and plant bananas, papaya and pineapples now. Pruning is shaping and tidying: cut back spent growth, shape fruit trees after harvest, and remove dead wood from tropical shrubs. Fertilising is steady and light: feed vegetables every few weeks, feed citrus and fruit trees, and use compost tea for a gentle boost. Pest and disease watch is weekly: aphids, whiteflies, spider mites, caterpillars, fungal spots and fruit flies all need attention, and good airflow plus prompt removal of affected leaves matters more than spraying. Watering is the biggest April job here: water deeply in the morning, mulch to at least a few inches, and check containers daily as heat builds. Harvesting is year-round and abundant: tomatoes, peppers, cucumbers, beans, leafy greens, herbs, citrus, bananas and papaya. Soil and compost work never stops: keep the heap hot and turning, add green waste, and refresh beds with compost. Houseplants outdoors need dividing, repotting and a check for pests that spread fast in warm, humid weather.
Lawns, tools and the April rush
April is lawn month in zones 5–10: mow for the first time on a high setting, feed lawns that are actively growing, overseed bare patches, and edge beds. On tools, set up stakes, cages and trellises now, before plants need them, check irrigation and hoses for winter damage, and keep fleece and cloches handy for a late cold snap. A few minutes of protection on a frosty night can save weeks of growth.
Frequently asked questions
When can I plant tomatoes outside in April?
In zones 8–10, tomatoes can go out in April once the average last frost has passed and the soil is warm. In zone 7, late April is possible with fleece handy. In zones 1–6, wait until May, after your average last frost. Harden seedlings off for a week first, and check your local extension service for the timing that fits your area.
What should I sow direct in April?
In zones 1–4, peas, spinach and lettuce under cover. In zones 5–7, peas, lettuce, spinach, kale, radishes, beets, carrots and potatoes. In zones 8–10, beans, squash, cucumbers, corn, okra and melons. In zones 11–13, almost everything, with heat-tolerant greens as temperatures rise.
How do I protect seedlings from slugs in April?
Go out after dark and hand-pick them, protect young plants with copper tape or collars, keep beds free of debris where slugs hide, and avoid watering in the evening. Beer traps help, and encouraging birds, frogs and hedgehogs gives you free slug control all season.
Should I feed my lawn in April?
Yes, in zones 5–10, feed lawns that are actively growing, mow on a high setting, and overseed bare patches. In zones 1–4, wait until the grass is growing steadily and the soil has warmed. In zones 11–13, lawns grow year-round, so feed lightly and regularly.
Can I prune roses in April?
Finish rose pruning early in April in zones 1–4 before buds break, but in zones 5–10 it should already be done. In April, prune only dead or damaged wood, and deadhead spent flowers. Our pruning calendar shows the timing for your zone.