Growing Rosella, also Queensland Jam Plant, Roselle

Jan F M A M J J A S O N Dec
                       

Not recommended for growing in USA - Zone 5a regions

  • Sow in garden, or start in seed trays. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 68°F and 95°F. (Show °C/cm)
  • Space plants: 55 inches apart
  • Harvest in 21-25 weeks.
  • Compatible with (can grow beside): Feverfew, Coriander, Nasturtium and Hyssop
  • Rosella bud

This frost tender annual grows to a height of 2 metres. It is grown for its red fruit which make delicious jam or jelly.

Rosella needs a growing season of at least 6 months warm weather so is best suited to tropical or sub-tropical areas. Can be started under glass in cooler areas. Water well and give a dressing of fertiliser when flowering starts.

Culinary hints - cooking and eating Rosella

The large flowers produce a crimson enlarged calyx.
Use the fleshy red calyx, without the green seed pod to make jam or jelly.

Your comments and tips

10 May 22, Glynnis (South Africa - Dry summer sub-tropical climate)
I've grown Roselle successfully in Grabouw, W.Cape, SA. Love everything about it!
21 Mar 22, C J Graham (USA - Zone 8a climate)
When is it safe to transplant my rosella in zone 8a?
29 Mar 22, Anonymous (USA - Zone 4a climate)
Don't know your climate but after frosts I would think. It likes warm climate.
21 Dec 21, Marva (Canada - Zone 7a Mild Temperate climate)
I live in Vancouver BC where can I purchase Rosella plants or seeds here
04 Mar 22, Deborah (Canada - Zone 7a Mild Temperate climate)
Hello i too would like to try growing rosella this year and wondered if anyone found where you can buy seeds or plants in Vancouver. thanks.
23 Dec 21, Anonymous (Australia - sub-tropical climate)
If there is no planting guide in the monthly planting calendar then you can not grow them where you live. Need a warm to hotter climate.
07 Nov 21, Ann Murray (New Zealand - sub-tropical climate)
Where can I get either a couple of seedlings of seeds. How long doo they take long to grow till they produce fruits?
17 Nov 21, (New Zealand - sub-tropical climate)
Seeds from the internet and read the info here about time to harvest.
08 Oct 21, Brin & Christine (New Zealand - temperate climate)
We grow the Rosella bush here in south east Queensland, they make delicious tart jam. Can be mixed with Mango for an interesting blend. I have a half jar left before we return to NZ in Jan 2022. I hope to find someone with a heated glasshouse in Christchurch to grow some from seed. cheers
20 Jul 21, Santhi (New Zealand - temperate climate)
Hi, I'm looking for roselle seed do you know where can i buy in NZ, thanks
Showing 1 - 10 of 452 comments

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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