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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 20°C and 35°C. (Show °F/in)
  • Space plants: 140 cm 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

14 Aug 18, ron (Australia - sub-tropical climate)
When and where to buy Rosella Plants
16 Aug 18, (Australia - sub-tropical climate)
Internet - The Seed Collection Company.
30 Jul 18, Graham Donnelly (Australia - tropical climate)
Could you please tell me why my rosellas are wilting and dying One seems to get the wilts and then all the others seem to follow I have a patch of about 20 trees ,they get to approx 3to 4 foot high and just seem to wilt and die The same area last year all the trees were fine I need help Please
02 Aug 18, mike (Australia - sub-tropical climate)
Google about wilting in rosella.
31 Jul 18, Mike L (Australia - tropical climate)
I have no idea - try putting wilting of rosella into google. I would imagine they need a lot of water in the tropics. I had Chinese cabbage like that a month or so ago. A couple of days of warm weather and little water and they just wilted.
24 Jul 18, Marlene (Australia - cool/mountain climate)
Can I grow rosella plants in Albion Park which is south of Wollongong in NSW
28 Jul 18, Neal (Australia - temperate climate)
Yes I grew one last year in Gosford. Had enough fruit for say a few pots of jam so grow 2
23 Jul 18, Mike (Australia - sub-tropical climate)
To all the questions about rosella planting - if you used this guide to look when to plant and harvest etc you wouldn't ask these questions. This website is a means for you to look up a plant (rosella) set what climate you live in and then read ALL the details about the plant. Plant time, time to harvest, if it is frost tolerant etc. Like if you are cool/mountain it says plant Nov /Dec -- so you don't plant until then.
25 Jul 18, Llew Boddam-Whetham (Australia - tropical climate)
We are actually on the south coast of Viti Levu, the main island of Fiji. This is a similar latitude to the Whitsundays say half way between Townsville and Cairns but a little less humid as we are on the coast. we grew H.Sabdariffa this year from local seedlings. The flower was yellow and the calyxes only 1.5- 2.5cm and not very fleshy. I believe this version has traditionally been cultivated in Fiji by the Fijian Indians for its young leaf which is a sour spinach used to make chutney. The variety you mention, H.Subdantta looks as though the calyxes is much more fleshy which would suit our end game of producing it as a food source for herbal teas and jams. What color flower does it have? Can you tell me where I can buy seeds from?
27 Jul 18, Mike (Australia - sub-tropical climate)
Go ebay.
Showing 1 - 10 of 371 comments

I am growing Rosella in my aquaponics it is doing really well 600mms high 2 of them but I don't know how it will go through winter any guesses?

- Kerry

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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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