Growing Rosella, also Queensland Jam Plant, Roselle

Hibiscus Subdantta : Malvaceae / the mallow family

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 Jul 22, Daniel E Brumbaugh (USA - Zone 9b climate)
I started a tray of roselle in June an I'm planting now in July. Is it too late? I know that roselle blooms when the days start getting shorter, how does this work after the summer solstice?
12 Jul 22, Anonymous (USA - Zone 9b climate)
It does say plant in March.
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.
Showing 1 - 10 of 454 comments

My Rosella bushes are currently very productive and making lots of jam. However i am not sure what to do when the fruit is flowers are finished. Do I prune or pull up and start again in Sept/Oct with new seedings? I live is suburban Brisbane. I would love some advice from experienced growers.

- Joanne L Hilder

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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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