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Growing Basil

(Ocimum basilicum)

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

(Best months for planting Basil in Australia - temperate regions)

S = Plant undercover in seed trays. T = Plant out (transplant) seedlings.


  • Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 18°C and 35°C. (Show °F/in)
  • Space plants: 20 - 25 cm apart
  • Harvest in 10-12 weeks. Pick before flowering.
  • Compatible with: Tomato
  • A Basil plant
  • Basil flower

A frost tender low-growing herb. Basil is a culinary herb prominently featured in Italian cuisine, and also plays a major role in the Southeast Asian cuisines of Thailand, Vietnam, Cambodia, and Laos. The plant tastes somewhat like anise, with a strong, pungent sweet smell. There are many varieties including, thai, purple ruffles and lemon.

Can be grown inside in pots in winter. As the plant develops, pinch out the top to encourage bushy growth. Pick off flowers to encourage more growth.

Culinary hints - cooking and eating Basil

Basil is commonly used fresh in cooked recipes. It is generally added at the last moment, as cooking quickly destroys the flavour. Tear rather than chop.
The fresh herb can be kept for a short time in plastic bags in the refrigerator, or for a longer period in the freezer, after being blanched quickly in boiling water.


Your comments and tips

29 Jan 12, Kate (Australia - cool/mountain climate)
My Basil isnt growing at all this year
24 Nov 11, Amy Mitchell (Australia - temperate climate)
My basil has started getting brown dots. I don't think this is good. What can I do?
22 Jan 11, Trish (Australia - tropical climate)
We have a few basil plants around a foot high right now and are picking and eating happily. They haven't flowered, and I'm told I should pinch off the flowers to prevent it. my question - I'm such a beginner - do they die off and require replacing, or do the carry on forever if I keep pinching off the flowering heads? If they die, I should be planting again now!
14 Oct 11, Julie (Australia - temperate climate)
I have been experimenting growing herbs for the last year. Let some of the basil flower and go to seed, when dried out save the seeds and plant again in September for regrowth. Perfect for making pesto, keeps well when made and sealed. Basil does need to be sown each year,
23 Jan 11, craig (Australia - sub-tropical climate)
You can actually just cut them right back and dry an excess in the oven (very low temp for 45 min or so). the plant will look like death, but tends to start growing again. If it dosent it's an easy herb to keep seeding. I still have the same "bush" that Ive had in a pot for 3 years. Pick, dry regrow start again!
28 May 10, Steve (Australia - cool/mountain climate)
How can I grow Thai Basil in Adelaide Winter,I have small glasshose will this work or do I need lighting too Ta
12 May 10, Rachel (Australia - temperate climate)
How do I make my basil grow fuller? does anyone know how my plant needs to be groomed to grow thick and lustrous? thanks
12 May 10, (Australia - cool/mountain climate)
Your basil will grow more 'bushy' if you nip off the growing tips once the plants are well-established. They will send out lots of side-shoots and bush out. Also, I found watering with a seaweed-based liquid fertiliser helps.
20 Apr 10, tony (Australia - temperate climate)
bridget, sounds like the basil is just going to the flowering stage?? maybe you planted it / bought it a bit late in the season. you can extend the growing phase by cutting / breaking off the stems just below the transistion / flowering growth . . . but you have probably discovered this already ... its not rocket science :). Once the basil plants die, you can take them out, hang them up, and in early spring just shake the plant and rake seeds into damp soil. Hey presto...nature provides us with pesto.
23 Nov 09, Bridget (Australia - temperate climate)
To be honest Damooo, i have no idea. I'm a novice herb gardener and just purchased a punnet from a local outlet...
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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.

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