Amaranth

Amaranth

Amaranthus caudatus

Sow outdoors 1 week after your last spring frost. Space plants 10 in (25 cm) apart.

Photo: Joost J. Bakker IJmuiden, CC BY 2.0 · source

When to plant

Timed from your frost dates, so it holds wherever you garden. Give yours and every step below becomes a date.

See the dates for your garden

Enter your average last spring frost and first fall frost. Every timing on this site turns into a calendar date. Not sure of yours? Your local extension service or a search for “last frost date” and your town will tell you; the app finds them from your location.

Last spring frost
First fall frost

Saved in this browser only. Nothing is sent anywhere.

Optimal Direct Sow

From seedRecommended
  1. Sow outdoors1 week after your last spring frost
  2. First harvestabout 100 days after sowing

Optimal Indoor Start

From seed
  1. Start indoors4 weeks before your last spring frost
  2. Begin hardening offaround your last spring frost
  3. Plant out1 week after your last spring frost
  4. First harvestabout 100 days after sowing

Growing amaranth

Spacing in the row
10 in (25 cm)
Between rows
24 in (61 cm)
Planting depth
1/8-1/4 inch
Sun
Full Sun
Mature height
4-6 ft
Life cycle
Annual

Feeding

How often
At planting only. Work in a light dressing of compost before sowing; extra nitrogen makes grain amaranth tall, leggy and prone to falling over, and the plant accumulates nitrate.

Your amaranth, planned to the day.

Canopy turns these timings into dates from your own frost data, places every plant at its spacing on your garden map, and tracks it all the way to harvest.

Add amaranth to your planting calendar →

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