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Beet Seeds, Mammoth Red Mangel
Description
(Beta vulgaris). A gargantuan beet for the whimsical gardener! Harvest this delectable beet for the dinner table when young, or allow it to grow to epic proportions (ours have reached up to 40 pounds and 6 feet long) for giant veg competitions or just for a good old-fashioned gardener’s brag! The greens are supremely tender, even as the roots swell; we have harvested yummy greens from our giant Mangel for up to 6 months. The roots are endlessly useful; they can be eaten, fed to chickens, horses, cows, and sheep, or used for sport!
- 100 days to maturity
- Full sun
- Sprouts in 14-21 days
- Seed Depth: 1/2"
- Plant Spacing: 4-6"Â
- Ideal Temperature: 50-85 F
- Frost Hardy: Yes
Growing Tips
Mammoth Red Mangel beets prefer deeply tilled, well-draining soil, ideally sandy or loamy, to accommodate their large size. Adding plenty of organic matter, like compost, will support healthy growth. It’s also advisable to remove rocks from the planting site. Thin early for best results.
When to Grow
These beets are best planted in early spring or late summer. In regions with mild winters, they can also be sown in late summer for a winter crop. They thrive in cooler temperatures, ideally between 50 F and 85 F, making them suitable for USDA Hardiness Zones 3-10​.
How to Sow and Plant
Sow seeds directly into the garden about 1/2 inch deep and 4 inches apart, with rows spaced about 2 feet apart. Thin plants to 4-6 inches apart. If starting indoors, transplant seedlings once they are sturdy enough to handle and the soil is workable. Ensure that the soil remains consistently moist but not waterlogged during germination and early growth.
How to Grow
Mammoth Red Mangel beets require regular watering to prevent the roots from becoming tough and woody. Mulching around the plants helps retain moisture and keep weeds at bay. They are moderately heavy feeders, so consider applying a balanced fertilizer during the growing season. Be mindful of pests, though these beets generally face fewer pest issues compared to other crops​.
How to Save
- Beets are biennial, which means they don’t flower until the second year of growth.
- In the first year, when frost approaches, either try to overwinter them in the ground with floating row cover (a bit risky if you live in the north) or dig up the choicest plant before a freeze and store it indoors in a cool, dry, dark location until spring.
- Replant after last spring frost and allow to flower.
- Beets are wind-pollinated and will easily cross with other beet varieties that are flowering, as well as with Swiss chards (which fortunately very rarely flower without assistance).
- Properly stored seeds should remain viable for 5 years.
FAQ
How large do Mammoth Red Mangel beets get?
Mammoth Red Mangel beets can grow extremely large, often reaching up to 20 pounds each under optimal conditions. They require deep, well-tilled soil to reach their full size without becoming misshapen​.
Can I grow Mammoth Red Mangel beets in containers?
Yes, but due to their large size, growing outdoors is recommended to ensure substantial growth.
What can I use Mammoth Red Mangel beets for?
Mammoth Red Mangel beets are traditionally grown as livestock feed due to their large size and high yield. However, they can also be harvested young for human consumption, providing a sweet, tender beet suitable for various dishes​.
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