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 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 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

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)
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
22 Oct 08, (Australia - cool/mountain climate)
Where can i get seeds for Hibiscus Subdantta (Rosella)
07 Nov 08, alister (senior gardener) (Australia - sub-tropical climate)
Rosella. 1st Bunnings are stocking small plants in the Brisbane region .Elsewhere?? (Nov 08) Plant in a free draining bed, enriched with organic matter. If in a warmer climate mulch with sugar cane straw. NOT bark,or wood chip as they cause the soil to go hydrophobic. (water repellent).Use plenty of a nitrogen based fertiliser and get good leaf growth. Plants about 1.2 metres apart. Consider sulphate of potash to get vigorous qualtiy plants.Light side dressings at the roots drip zones..Plants that are well fed and growing strongly are particular able to resist insect and disease attack. If you use seed expect to see it through in 10-14 days.Put slug bait on the covering soil and cover all with 3-4 pages of newspaper or 50mm of cane mulch.Be careful to watch as the seedlings come through so they do not become leggy.Keep damp. We have 7 plants underway on Macleay Island Brisbane.Best wishes and good luck.
12 Dec 19, Rhonda AFFOO (Australia - temperate climate)
I live at Kilcoy QLD (Somerset Council area) & I always plant my Rosella seeds in seed trays 2nd week in August & raise under black plastic.. They germinate pretty quickly this way which allows me to have them high enough to transplant into raised beds before end of September. This way I can usually start harvesting the rosella pods by end of Dec. They keep bearing until the first hint of winter (temperature drop or cool winds) they then turn up their toes & I pull them out..I rest my beds & grow a green manure using cheap canary seed which I trim back with whipper snipper to break down in to the soil.
17 Jul 20, Jeff Bell (Australia - sub-tropical climate)
Are you saying that after a harvest you pull the plant out? Does the turning up of the toes always happen in Winter? This is exactly what happened to my plant. I thought I killed it in someway!
Showing 11 - 20 of 469 comments

The online catalogue of lists roselle.

- Liz

Please provide your email address if you are hoping for a reply

All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.

Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.