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What to Plant in May: Seasonal Garden Tasks

May is the busiest planting month in most temperate gardens. Once the last frost has passed, warm-season crops can finally go outside and growth takes off. 100% Local

Garden Tasks in May

What to Plant in May

Warm-season crops can be planted out now: tomatoes, peppers and cucumbers all grow quickly in the long days. Basil also thrives once nights are mild.

Climate Notes

In colder zones, wait until the last frost date is safely past before planting tender crops. In warm zones, watch water levels as temperatures rise. Shade new transplants from strong midday sun.

Frequently Asked Questions

What if a late frost is forecast?

Cover tender plants with fleece or a cloche overnight, and hold back on planting anything frost-sensitive until the risk has passed.

How deep should I plant tomatoes?

Deeper than they were in the pot โ€” roots form along the buried stem, which makes a sturdier plant.

Indoor Plants This Month

Once the last frost has passed, many houseplants benefit from a summer outdoors in a sheltered, semi-shaded spot. Harden them off first, then keep them out of harsh midday sun and wind. Plants that stay inside still need regular feeding and more frequent watering as growth speeds up and the mix dries faster. Turn them a quarter turn each week so they grow evenly toward the light.

Is it safe to put houseplants outside?

Yes, once nights are mild and the plants have been hardened off. Keep them in filtered light at first and bring them in if a cold night is forecast.

General horticultural guidance for planning only. Verify locally.

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