Syracuse Rose Society

Your Roses Won't Bloom?

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by Dorothy Storms

In early May I was asked about a rose problem. The person had a few roses and they bloomed for two years and now they have lots of growth and no roses.

When roses don’t bloom, it is usually a fact of grafted roses. Most all growers use grafting to get as many new plants from the original variety. Most roses are grafted on common rootstock Rosa Multiflora. The new variety is known as the “scion”.

Out in the garden the grafted rose is two plants that become one, but the “scion” may not be quite as vigorous as the rootstock. If it is subjected to severe stress from heat, cold, drought, pests or disease, the “scion” wood suffers most.

It is not uncommon for the “scion” to die altogether leaving the rootstock alive to grow freely. This rootstock can survive and grow large and lush. The best solution is to remove these rootstocks and replant with a new rose. This is why it is so important to protect your roses during the winter.