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
S             S S S S S
T T T           T T T T
P P             P P P P

(Best months for growing Rosella in Australia - sub-tropical regions)

  • S = Plant undercover in seed trays
  • T = Plant out (transplant) seedlings
  • P = Sow seed
  • 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
  • Rosellas on plant
  • Rosella bud
  • Rosella plant

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

29 Mar 08, Bruce Hankin (Australia - sub-tropical climate)
Where can I buy Rosella (Queensland jam plant) seed or plant in Western Australia??
11 Jul 08, Noelle (Australia - sub-tropical climate)
My mother's recipe (recipe 80 years old, and now mine) -always boil the seed pods up separately. Strain through fine muslin and add liquid to the red pods and sugar. No lemon is used, as it changes the real rosella flavour.
18 Jul 08, Renate (Australia - sub-tropical climate)
After a lovely harverst, I cut down the plant and a few of them look like as if they are dying. How do I look after them after flowering and seeding as this is my first year. Comment for jam making, you do not have to boil the seedpods, there is enough pectin in the fleshy part to set and it is a cleaner taste. I have been making jam for years.
23 Jul 08, (Australia - cool/mountain climate)
Could anybody advice me where can I buy rosalla leaves in Australia. I live in sydney. Thax
08 Aug 08, Zenon (Australia - sub-tropical climate)
I grow a large plantation of approx 900 plants. If you are organic - Utilise pyrithrum for mites that may attack the stems. If you have drainage issues the root rot is cause by Needmatodes in the soil. It is very important not to re-plant a rosella straight away in the same location. Make sure your beds are well rested to rebuild core nutrients and particularly nitrogen for a good return harvest. While bed resting make sure you toss the soil for subsoil airation as well. @ 2 months they do appreciate a slight scatter of dynamic lifter and if you can source it prior to flowering worm castings - an incredibly rich furtiliser that makes up 1litre per 1 gram. I have been supplying the flower in syrup for years which is most commonly used in either drinks or served over ice cream and have recently made Rosella vinegar. Another hint is to make it into a sauce for pork - Devine taste!!! For any enquiries please email myself: zenon.kowalczyk (at) gmail.com
14 Aug 08, Addy (Australia - sub-tropical climate)
Is now the right time to germinate rosella seeds? I thought to start some seeds in punnets and to plant the seedlings into a sunny spot later. I grew 3 from bought seedlings early this year and havested enough to make 1 bottle of jam. They were skinny little bushes, not like the pictures of bushes I've seen on the internet! How do you get them to have heaps of branches? Tip off the main stem? Any advice wouldbe much appreciated!
01 Sep 08, Bevin (Australia - temperate climate)
I require more information about growing rosellas west of Toowoomba. Do they require fertilizer? what type and how much per sq metre? What pest control is needed?
15 Sep 08, Tripperx (Australia - sub-tropical climate)
I plant my rosella in September on the first full moon. I did this last year and end up with 5 plants. I noticed the two that i planted in full sun and watered more often, grew lager and had more fruit. Also very popular with jam makers so always grow an extra bush for friends.
05 Oct 08, Leo Hallahan (Australia - sub-tropical climate)
could you let me know what type of fertiliser is used on rosella plants.
06 Oct 08, terry (Australia - sub-tropical climate)
How long do Rosella seeds take to germinate in the Brisbane area
Showing 1 - 10 of 409 comments

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