Beets are incredibly healthy eating. Both the roots and the leaves are an excellent source of antioxidants, minerals, and vitamin C. They also contain betaine, a compound that is essential for cardiovascular health. Eat them raw, cooked, pickled – you can even make beet chips! Most important, it is very easy to grow beets from seed.
Season & Zone
Season: Cool Season
Exposure: Full-sun or partial-shade
Zone: Hardy to Zone 5
Direct sow late April to mid-July. Beets will not produce roots if planted when the soil is too cold. Seeds will germinate in 5-12 days, depending on soil temperature. Optimal soil temperature: 10-26°C (50-80°F).
Sow 1cm (½”) deep, 5-10cm (2-4″) apart in rows 30-45cm (12-18″) apart.
Ideal pH: 6.0-6.8. For uniformly sized beets, thin carefully to 7-15cm (3-6″) apart when seedlings are 5cm (2″) tall. Eat thinned plants, roots and all. root size is controlled by spacing and variety.
Harvest at any size, but for the best flavour, pull the beets as soon as they have reached full-size. Eat the greens too. Store in the ground, or in moist peat or sand just above freezing.
In optimum conditions at least 75% of seeds will germinate. Usual seed life: 3 years. Per 100′ row: 600-1M seeds, per acre: 436M seeds.
Diseases & Pests
If beets have black cankers in the roots, soil may need more boron. Dissolve 1 tablespoon of borax to 4L (8½ US pints) of water, and spread evenly over 9m² (100 sq ft) of soil. Do not overapply at a heavier rate. Circular lesions with a purple halo on the leaf is cercospera leaf spot. Prevent by rotation and sanitation. Leaf miner maggots cause blistered grey tunnels in leaves. Just squish them inside the leaf. Floating row cover carefully applied will prevent the leaf miner fly from laying its eggs.
Beets add minerals to the soil. The greens are very good for the compost. Plant with bush beans, Brassicas, corn, garlic, kohlrabi, leeks, lettuce, and mint. Add cut mint leaves as a mulch for beets. Avoid planting beets near pole beans.