As a general rule you should be safe planting out Dahlias in mid-May. If you do get a frost after that time, the tops might be blackened and flowering delayed but the tubers should be safe. To slow the growth until planting out, cut down on watering slightly to hold back your plants - this should also encourage them to flower a little earlier.
Gardening Expert: |
If you can't find what you are looking for on the website then you can ask one of our experts. To get in touch with us Click Here
We will try to get back to you with an answer as soon as we can.
Did you find this answer useful? Subscribe to our newsletter for gardeing news, projects, special offers and competitions.
Powerscourt Gardens
Enniskerry, Co. Wicklow, Ireland
Pukekura Park
New Plymouth, New Zealand
Gardens of Versailles
Versailles, France
Royal Botanic Gardens Victoria
Melbourne, Australia
Singapore Botanic Gardens
Singapore
Kirstenbosch National Botanical Garden
Cape Town, South Africa