Become a Partner

Become a partner! Join our network and enjoy the full benefit of our marketing activities.

Become a partner! Sign up to be added to our listing of growers who produce retail-ready plants or our retailer listing, depending on your business. Growers will be featured on our website. Retailers are promoted at, our consumer website which is backed up by an impressive social media marketing program.

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Fill out the form below to be added to the Where to Buy sections on Must Have Perennials® (Growers) or Rozanne and Friends (Retailers) websites.


Must Have Perennials® varieties come to us from people around the world, ranging from professional plant breeders and breeding companies to eagle-eyed amateur gardeners.

Must Have Perennial varieties are tested at the famous Bressingham Gardens, as well as other secure trial sites worldwide. Many varieties have been recognized by independent organizations for their outstanding qualities.

All plants are are trialled rigorously for quality and reliability before introduction at secure trial sites worldwide, including The Bressingham Gardens. Only those which prove themselves to be genuinely garden worthy make it into commercial production.

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