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Growing Carrots in Tasmania

Introducing Carrots

Carrots can be planted from spring to autumn in Tasmania and are a great, easy-to-grow crop. Plant them regularly to produce an almost constant harvest. They take a while to mature and don’t like rich or heavy soil. Carrots do best in the cooler months and are sweetest when harvested after a frost.

Classic Mistakes

Carrots are all about soil. Don’t plant them in heavy soil or soil that contains many rocks. They’ll have stunted growth and strange shapes. If your soil is very heavy, rather plant carrots in raised beds or containers.

Sunlight

Grow in: Full Sun

Carrots do best in full sun. They'll tolerate some shade during the hottest months; but in the cooler seasons, they need all the sun they can get.

Soil Preparation

Dig your soil through to loosen it nicely before you plant your carrots. Remove any stones and then rake the top layer so that it’s really fine. Carrots are a root crop, so don’t add anything that has a high nitrogen content. Too much nitrogen will give them lovely bushy leaves, but underdeveloped roots.

Sowing Seed

Sow seed: September-March
Sowing depth: 6mm

Make a trench 6 mm deep and gently sprinkle your seed into it. Cover loosely with soil and water well. Once the seedlings are up, thin them according the instructions on the packet. Carrot seed is very fine and difficult to sow evenly. There are loads of tricks to make it easier. Some people mix their seeds with sand to get a more even spread. Another good trick is to use a salt shaker to sprinkle the seeds. Sow every 6 weeks for a continuous harvest.

Planting

Avoid planting seedlings.

Carrots are best grown directly from seed.

Care

Carrots need to be thinned twice. Thin them when they are about 5 cm high and again when they are about 12 cm high. The simplest way to thin them is to simply cut the unwanted plants off where they emerge from the soil. This kills the plant, but doesn’t disturb the roots of the plants around it. If you prefer, you can gently pull the unwanted plants from the soil, taking care not to disrupt the plants around them. It’s always a good idea to water your plants well after you thin them to help everything settle back down nicely.

Watering

Keep your soil consistently damp. If the soil is too wet or too dry, your carrots can become cracked or misshapen.

Feeding

Carrots don’t generally need too much extra feeding and definitely nothing with a high nitrogen content. You may feed them lightly every 6 weeks with a balanced organic fertilizer.

Mulching

A good layer of organic mulch will help to keep your soil from drying out too quickly. Lucerne or sugar cane are good options. Remember, you should only mulch your plants once they are well established and a decent size.

Harvesting

Harvest: 12 to 18 Weeks After Planting

Gently pull your carrots from the soil when the reach the desired size. They can be harvested at any stage, depending on which size carrots you prefer. Smaller varieties will obviously mature quicker. The leaves can be added to your compost pile. Don’t leave your carrots in the soil for too long or they can start to become woody and lose their lovely sweet taste.

What to Plant Now

What to do about Aphids?

Spray with soap spray weekly until the problem is under control. It may be necessary to reapply more often during particularly wet weather.

What to do about Carrot Fly?

Carrot Fly: Plant alliums (like onions are garlic) nearby to deter carrot fly Cover your plants in an insect proof mesh or fleece.
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