Beetroot is instantly recognizable for its purple color that rivals red wine in clothes-staining capability. It has been selectively bred for many centuries from the maritime sea beet to produce the most full-flavored roots possible. Beetroot comes in colors other than its trademark deep reddish-purple, but they are comparatively rare.
Beetroot suits many different climates. It loves sun but can tolerate shade and even a light frost.
Planting Beetroot
In tropical and subtropical climates beetroot can be sown from late autumn to early spring. In temperate climates it can be sown in spring through to autumn. It doesn’t like the very wet and very humid and hot times of year. Some varieties are bolting resistant and can be sown out of season.
Beetroot can be grown from seed placed straight in to prepared beds or seed trays. They will need to be kept moist and transplanted after about 2 weeks if grown in trays. Beetroot likes fertile, well-drained soil. Do not over fertilize or manure it as it will affect the root development. Similarly, be careful when using a site where fertilizer has been used heavily in growing a previous crop.
Before sowing seeds, soak them overnight in water. Sow the seeds about half an inch (1.5cm) deep and 6 inches (15cm) apart with 8 inches (20cm) in between rows.
Growing Beetroot
Most of the seeds that are bought at stores are actually a fruit containing multiple smaller seeds, so thinning is frequently needed as the plants grow. It’s time to thin when the seedlings are touching, which may happen multiple times as the plants grow. Some of the plants that are being thinned out will be edible, or alternatively they can sometimes be successfully transplanted to another site in order to grow more beetroot. Some varieties, referred to as ‘monogerm’, don’t need thinning.
If starting growth in a pot, punnet or tray, the seedlings will need to be transplanted once they have formed their first true leaves. Keep the seedlings moist during transportation.
The best soil temperature for beetroot is around 20°C but it can tolerate soil temperatures as low as 4°C.
Growing Beetroot In Pots
Round varieties of beetroot do well in pots about 8 inches (20cm) in diameter and 8 inches (20cm) in depth. Pots can be filled almost to the top with a general purpose compost. Gently compact the compost in the pot by pressing down on it. Spread the beetroot seeds loosely across the surface, then cover with another inch of compost. Water regularly but do not soak.
Harvesting Beetroot
Beetroot usually takes 10-12 weeks to mature. It cannot be left for too long or else the flavor and texture becomes woody. Harvest before 10cm in diameter. Lift from the ground using a fork and twist the leaves off. They can last for a few weeks in the refridgerator but damaged ones should be used as soon as possible.
Threats to Beetroot
Beetroot is thankfully relatively disease and pest free.