How to grow Amaranthus hybridus

Amaranthus hybridus grow and care – herbaceous of the genus Amaranthus and also known as Smooth pigweed or Green amaranth, Amaranthus hybridus shot perennial evergreen or in cold weather an annual plant, it’s edible plant and mostly used as ornamental plant, grow in mediterranean, subtropical, temperate, tropic climate and growing in hardiness zone 2+.

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Amaranthus hybridus edible leaves and flower

Leaves edible in oval shape, the leaves color can be: green, red or something in between.

Flowers small purple or yellow, green or orange and grow on inflorescence stalk, the seeds are also edible.

Amaranthus hybridus for sale – Seeds or Plants to Buy

How to grow Amaranthus hybridus growing and care:

Moist, rich soil, mulch, sometimes the plants need support of cane that the plant won’t fall

What is the best way to start growing:
Plant / Seed, germinate with high success in the spring but possible also in the summer and autumn, in area with warm winter can bloom in the winter, the plant reseed itself, collecting seeds better to do in the end of the blooming to put paper bag on the flowers to close it down and twist the stem little down that all the seeds will fall to the paper bag.

Is it necessary to graft or use vegetative reproduction?
No, possible to do start from cutting, but better from seeds

Difficulties/Problems with growing:
Aggressive, can be weed

Planting season:
Spring, (in cold area better start growing indoor in the end of the winter than to transfer it outdoor after the last frost), when buy small plant in warm region possible to plant it in the summer

Pests and diseases:
Apids, prodenia

Pruning season:
All year, better after the plant dead or in the spring before the flowers

How to prune:
Usually not necessary to prune, but if needed that the plant will be small or more full of stems better to cut in the top of the plant in the spring after the plant establish

Size of the plant?
0.8-1.5 m, 32-60 inches

Growth speed in optimal condition:
Fast growing

Irrigation water management requirement:
Average amount of water

Light conditions in optimal condition for growing:
Full Sun, can be with less than full sun, it will affect the amount of flowers

Is it possible to grow indoor as houseplant?
No

Growing is also possible in a pot / planter /flowerpot / containers:
Yes, when grow in container size better to be 5-8 liter (1.5-2 gallon), require average amount of water, it’s to keep the soil moist consider to put mulch and can reduce vaporization of the water, need to take care that the soil well ventilated with good drainage, rich with organic matter, can use in potting mix or peat soil with perlite or vermiculite.

Blooming information

When does flowers bloom?
Summer / Autumn

General information about the flower
Purple small flowers, inflorescence stalk

Thinning / Deadheading of Blossom:
Not recommend cause the seeds are also edible, if you choose to cut better to do it in the buds and not let the plant bloom

Pollination is done by:
Bees, fly

Edible leaves

When to trim the leaves?
Spring, Summer, Autumn / in warm climate better to harvest in spring the leaves young and tender and the plant might bloom in the summer, in colder region better to start to harvest in the late spring after the plant establish until the end of the summer, sometimes possible in the autumn but better to harvest when the plant doesn’t bloom

How to trim the leaves?
Cut the stems or just leaves from the base, better to cut the leaves when the leaves fully grown and young, the leaves softer and less fibrous

Information about leaves:
Oval, the leaves color can be: green, red or both

Uses of Amaranthus hybridus leaves:
Eaten raw, salad, stir fry, cooked

How to grow Amaranthus hybridus from seeds

Sowing requirement:
Rich soil, humidity, sunny location, and hot climate better not too much

Saving seeds until sowing:
Dry and dark location

Sowing season:
Spring after the last frost to early summer in hardiness zone 2-10a, in hardiness zone 10b+ can be planted all the year mostly germinate in spring or autumn but will looks less good in the winter and might won’t grow well

Planting spacing:
20*30cm (8-12 inches)

Depth of Sowing:
1-10mm

Conditions for seeds germinate:
Moist soil, full sun, warm weather

Watering requires for Seeds:
Average amount of water / Big amount of water

Germination time:
2 weeks to 12 month

Condition of seedling:
Water regularly and weed free

Scientific name:

Amaranthus hybridus

How to grow Amaranthus hybridus

Growing Amaranthus hybridus

Amaranthus hybridus plant care

Amaranthus hybridus

Categories

Blooming Seasons
  • Autumn flowers
  • Summer flowers
Edible Parts
  • Edible flowers
  • Edible leaves
  • Edible Seeds
Culinary uses
  • Cooked
  • Eaten raw
  • Salad
  • Stuffed or Wrapped
Flower colors
  • Purple flower
  • Red flower
Climate
  • Desert Climate
  • Mediterranean Climate
  • Subtropics Climate
  • Temperate Climate
  • Tropics Climate
Harvest Season
  • Autumn Harvest
  • Spring Harvest
  • Summer Harvest
Leaf color
  • Purple leaf
  • Red leaves
Ornamental parts
  • Ornamental flower
  • Ornamental leaves
  • Ornamental plant
Plant growing speed
  • Average growing plants
  • Fast growing plants
Plant life-form
  • Annual plant
  • Herbaceous
Plant Uses
  • Attract pollinators
  • Colored leaves
  • Edible plants
  • Ornamental plants
Planting Season
  • Spring Planting
  • Winter planting
Plants sun exposure
  • Full sun Plants
Watering plants
  • Regularly water
Hardiness zone
  • Hardiness zone 10
  • Hardiness zone 11
  • Hardiness zone 12
  • Hardiness zone 13
  • Hardiness zone 2
  • Hardiness zone 3
  • Hardiness zone 4
  • Hardiness zone 5
  • Hardiness zone 6
  • Hardiness zone 7
  • Hardiness zone 8
  • Hardiness zone 9

Growing in Pots, Balconies & Indoors

Amaranthus hybridus (Amaranthus hybridus) is a sun-loving annual grown for its colourful, edible leaves; the grower notes it is not a houseplant, as indoor light is too weak. It grows well, though, in containers on a sunny balcony or patio.

Quick Details

  • Container Size: 5-8 L (1.5-2 gal) (grower’s guidance); the plant reaches 0.8-1.5 m (32-60 in)
  • Indoor Suitability: Not a houseplant – it needs full sun
  • Best Spot: Full sun (it will grow in a little less, but with fewer flowers)
  • Soil & Drainage: Well-ventilated mix with good drainage, rich in organic matter – potting mix or peat with perlite/vermiculite
  • Watering in Pots: Average – keep the soil moist; mulch helps cut water loss

Indoors & On the Windowsill

  • Not a houseplant: The grower is clear it will not thrive indoors – it needs full sun.
  • Windowsill: A sunny sill is generally too weak for a strong, leafy plant; grow it outdoors for best colour.
  • Season: It is a warm-season annual – start it after the cold has passed and grow it through the warm months.

On a Balcony or Patio

  • Light & wind: Give it the sunniest spot; the tall stems may need a little support on exposed balconies.
  • Watering: In heat the 5-8 L pot dries fast – mulch the surface and check moisture often.

Choosing the Pot, Soil & Long-Term Care

  • Pot & drainage: A 5-8 L pot with enough holes for good drainage.
  • Potting mix: A well-ventilated, free-draining mix rich in organic matter – potting mix or peat with perlite or vermiculite; mulch on top keeps it moist.
  • Feeding: Feed through the season, as nutrients leach from the pot.
  • Life cycle: As an annual, replant each warm season rather than potting on.

Bloom & Flower Guide

Quick Details

  • Bloom Season: Summer to autumn
  • Time to First Bloom: In its first season, roughly two months after sowing, as the days warm
  • Flower Appearance: Small flowers in purple, yellow, green or orange, packed onto an upright inflorescence spike
  • Edibility: The leaves are the edible part; the tiny flowers are not eaten as a flower (they later ripen into edible grain)

Detailed Blooming Overview

Amaranthus hybridus is grown as a leafy vegetable and ornamental, and flowering marks the shift from leaf to seed. As summer arrives the plant sends up upright spikes crowded with tiny flowers in purple, yellow, green or orange tones. Since the plant is also grown on for its grain, flowering is often welcomed; but for the best leaf quality the buds are usually pinched out early.

Flower Characteristics

  • Very small flowers, chiefly purple but ranging to yellow, green or orange, densely packed on upright spikes.
  • The lengthening, colouring spikes become the ornamental feature.

Bloom Care & Thinning

  • Managing the bloom: To keep leaves tender it is best to cut or pinch at the bud stage before the plant blooms; if you are growing it on, leave the spikes to develop.
  • Pollination & seed set: This amaranth is mainly wind-pollinated and self-pollinating; bees and flies may visit but are not the main pollinators.