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 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

Your comments and tips

09 Mar 21, rod ward (Australia - temperate climate)
Hi Bruce, Rod here from Caboolture Qld, about 30klms from coast. From my experience and not sure what you refer to as a mature plant. Rosellas like full sun, like soil to be moist but do not overwater, like a well drained soil, they are known to die very quickly if too wet. I buy seedlings as I have poor success in raising from seed. Up to about 400mm high I remove any small fruit so that they tend to branch out. I planted last year in September and the first flowers appeared about 3 weeks ago. Fruit ready to pick now. My trees are about 2metres tall now. Message back if you would like more info. Cheers Rod
22 Sep 21, Matilda (Australia - temperate climate)
Hi Rod, just wondering where do you buy your seedings from? Many thanks, Matilda
10 Mar 21, (Australia - sub-tropical climate)
Rod - germinating seeds. I use nursery trays about 15
01 Mar 21, Rod (Australia - temperate climate)
I am in sunshine coast north of brisbane. Q My rosella bush has lime green flowers with a very light pink tinge on outer edges. The fruit is of harvest size but the calyx is green and not red. Any ideas please before the plant becomes compost. Planted early sept. This is the second year this has happened. Seedlings purchased from nursery nearby.
04 Mar 21, (Australia - sub-tropical climate)
I suggest you talk to the nursery people or to their supplier. Also maybe ring someone like Eden Seeds and see if you can talk to someone who knows something about growing Rosellas. Maybe they need time to turn red it does say 5-6 months to harvest.
21 Feb 21, David (Australia - sub-tropical climate)
Are Rossella roots invasive
22 Feb 21, colleen (USA - Zone 10b climate)
I have not found the roots to be invasive at all. They tend to form a main tap root with tiny roots branching out from it.
28 Jan 21, Merv (Australia - sub-tropical climate)
Hi wondering what the value of the Hibisus beatle and does it cause any damage to the plant?
01 Feb 21, Anon (Australia - temperate climate)
Check on the internet.
15 Jan 21, Rod Ward (Australia - temperate climate)
Hi Rhonda, I live in Caboolture, not far from you. Just wondering could we catch up some time to exchange ideas about growing Rosella plants. Thanks in advance Rod
Showing 21 - 30 of 412 comments

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