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 New Zealand - cool/mountain 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
  • 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

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.
20 Jul 21, Santhi (New Zealand - temperate climate)
Hi, I'm looking for roselle seed do you know where can i buy in NZ, thanks
09 Aug 21, Anon (New Zealand - sub-tropical climate)
Try online suppliers
13 Sep 10, Liz (Australia - temperate climate)
Packets of Rosella seeds are sold in some garden centres in NZ. I found some on a display stand with other Aus seeds.
08 Sep 10, john (New Zealand - temperate climate)
Trying to find a outlet that sells the seed in New zealand,would would be keen to buy from any one that has aound 100 seeds.of roselle. Thanks John
07 Sep 19, Dana (New Zealand - temperate climate)
Hi John. Couldn't find a date on the post so don't how it is, but if you are still interested in seeds, King Seeds has the seeds for Roselle.
02 Mar 21, Pav (New Zealand - cool/mountain climate)
Hi There ,i am looking for the roselle seeds if anyone has it
13 May 09, Liz (New Zealand - temperate climate)
This site should answer your questions about harvesting and using rosellas. It sounds delicious. www.greenharvest.com.au/seeds/info_sheet/rosella_jam.html
31 Jan 09, YESSE (New Zealand - temperate climate)
I started to grow rosella in DAR ES SALAAM TANZANIA this january, my intension is to do research and making combination with other plant to get new product.

For a family grow 4 to 6 plants; when making the jam, jelly, chutney, or flowers in syrup for later use in champaigne, save some seed pods. Dry them carefully in the sun avoiding rain and birds. Rosellas may be found in the Brisbane Markets most months except July and August. 2009 prices are $4.00 to $7.00 for the firm clean dry fruit. Retail would be from $5.00 to $10.00 per Kg. Packed in new jars and well labeled the jam sells at $4.50 per 300g. Poorly packed in scruffy second or third hand jars 500g may sell for $4.00 if you are silly enough to make it properly and the pack it poorly; either way its a lot of work...two or three boilings of twenty to 30 minutes and lots of sticky red mess on sauspans, seives, jugs, ladles, benches and floors; sugar, lemons, limes and jam thickener all have a place in the jam making. I first made the jam with my parents in 1955 after growing 12 to 16 bushes successfully for my Gardeners Badge in Cubs. The Secret Jam makers business covers the many ways of removing the calyx from the seed pod. HOWEVER THE FLAVOUR IS NEVER FORGOTTEN UNIQUELY QUEENSLAND AND UNSURPASSED. Over the years I' ve raise hundreds of dollars for the Red Cross and Local Churches and given away dozens of jars of Jam. I am trying a recipe I devised for Rusella Butter which should knock Lemon Butter way off the shelves. Rosella Jam made with enough sugar will keep for 12 months below 25 oC, refrigerate after opening. Rosella Butter and Lemon Butter, Lime Butter, Passionfruit, Orange or Banana Butter must be refrigerated at ALL times and then will probably only last 4 or 5 weeks...even less once you open it! Lick your wooden spoons all you Qld. Jam makers. Plant the seeds (rosellas) after the last frost and plant 1 m apart in a sunny spot in well drained soil, applying fertiliser when the flowers first start. The plants may last two seasons but need to be trimmed in wet weather and after fruiting. Thehy are easier to remover after ONE season.

- Geoff

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