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Growing Rosella, also Queensland Jam Plant, Roselle

(Hibiscus Subdantta)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
                    P P

(Best months for planting Rosella in Australia - cool/mountain regions)

P = Sow direct in garden where they are to grow.


November: Must be under glass or in mini greenhouse to start

  • Harvest in 21-25 weeks.
  • 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.
  • Space plants: 140cm-150cm

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

27 Jul 10 Maggie (Australia - sub-tropical climate)
Used to grow well on flood plain in Tweed Valley when I was a kid - black peaty soils. Grandma made the jam, hence my search for the topic - yum, love that slight tangy bite to the flavour.
20 Jul 10 marlene (Australia - sub-tropical climate)
How much fruit do you normally get from one bush. Can they handle Bris/Sunshine weather in summer. What kind fo soil do they prefer?
30 Jun 10 Natalie (Australia - cool/mountain climate)
greenharvest sells the seeds online.
27 Jun 10 Graham Horrocks (Australia - sub-tropical climate)
After fruiting is over, do i cut bush back or remove all together.
26 Jun 10 Anne meguyer (Australia - temperate climate)
I live in a coastal belt at Port Stephens. Where can I obtain plants to grow same? I grew up in Qld so recall them being grown there. No one round here seems to know of them. Thank You. Anne
12 Jun 10 philomene bell (Australia - sub-tropical climate)
planted 3 rosella bushes about 4 weeks ago and the y are starting bare fruit how do i know when they are ready to pick
18 Jun 10 Jean (Australia - tropical climate)
Hi, you can pick them once the calyx has firmed up.
13 May 10 Lisa (Australia - sub-tropical climate)
I would like to preserve the rosella flowers for a friend, like they do commercially for the bottom of your champagne glass. Can anyone help?
23 May 10 (Australia - cool/mountain climate)
Lisa, I've never seen the flowers like this - are they dried out or soft enough to eat when you've finished your champagne?
24 May 10 Meredith (Australia - temperate climate)
They're usually preserved in syrup, so they're a bit chewy at the end of the champagne but quite edible.
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See planting calendar for these countries and climate zones

Australia - cool/mountain,   Australia - sub-tropical,   Australia - temperate,   Australia - tropical,   New Zealand - sub-tropical  

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