Priority now
Check moisture around new planting, train young shoots and inspect plants before small problems spread.
Monthly garden calendar
Garden in May
May accelerates growth, but late cold can still damage tender plants. Combine reliable watering for new planting with checks of night temperatures and pests.
What can wait
Do not move tender plants outside permanently after only a few warm days; keep checking night temperatures.
What to record
Night temperatures, watering of new planting, first aphid colonies and the pace of young shoot growth.
More useful detail
How to narrow down the cause
Weather before the calendar
A warm day does not guarantee a warm night. Wait for a stable forecast before moving tender plants outside permanently.
Different garden areas
Containers dry faster than open ground, while a sheltered balcony may heat up more than a bed.
Calendar
A plan for this month
- 1
Water less often but thoroughly into the root zone.
- 2
Support fast-growing shoots before they break.
- 3
Record early signs of aphids, slugs and leaf disease.
Observation
Before doing the work
- Night temperatures suit the species being planted.
- New planting has a reliable watering plan.
- Young shoots are supported before they become heavy.
Important
Do not base May decisions on the date alone. Tender plants and new planting still require a local forecast check.
Sources and further reading: Royal Horticultural Society — Monthly gardening tips
From advice to your own plan
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Prepared by Florli. Reviewed October 15, 2026. This is general guidance. Sources are listed with each guide, and every decision should reflect the species, location, weather and the plant’s current condition. How Florli creates its guides.