If you mean Geranium (commonly called geraniums or pelargoniums), May is a key month to set them up for nonstop blooming all the way to frost.
Here are 10 essential things to do in May for strong, continuous flowering:
1. Move them to full sun
Geraniums need at least 6–8 hours of sunlight daily. Less light = fewer flowers and more leaves.
2. Refresh the soil or potting mix
Use a well-draining mix. Old, compact soil reduces blooming and increases root stress.
3. Start regular feeding
Begin fertilizing every 10–14 days with a balanced or bloom-focused fertilizer (higher potassium helps flowers).
4. Remove winter damage
Cut off any yellow, weak, or leggy stems so the plant redirects energy to new growth.
5. Pinch the tips
Lightly pinch growing tips to encourage bushier plants and more flowering branches.
6. Deadhead old blooms
Remove faded flowers regularly. This prevents seed formation and keeps blooms coming.
7. Water correctly
Water deeply but only when the top soil is dry. Overwatering = root rot and fewer flowers.
8. Check for pests early
Look for aphids, whiteflies, and spider mites. Catching them early prevents flower loss.
9. Repot if root-bound
If roots are circling the pot or pushing out drainage holes, move to a slightly larger container.
10. Harden off outdoor plants (if recently moved)
If they were indoors, gradually expose them to outdoor sun and wind over 5–7 days.
If you follow these in May, geraniums usually reward you with dense, continuous flowering through summer and well into frost.

