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Amaranthus hybridus
Smooth Pigweed
Amaranthus hybridus
Amaranthus hybridus, commonly known as Green Amaranth, is a fast-growing, erect annual plant. It is characterized by its broad, ovate leaves and dense, terminal flower spikes. The plant is known for its edible leaves and seeds and can grow up to several feet tall. It is adaptable to various soil conditions and can thrive in both sunny and partially shaded environments.
CategoryDetails
Culinary UsageEdible plant
Duration to maturity3 months to harvest
Estimated Plant Lifespan3 months lifespan
Sun Requirements6+ hours direct sunlight (Full Sun)
Pollination

Method: Wind

Notes: Amaranthus is primarily wind-pollinated, but can benefit from insect activity.

Watering Requirements

Method: Top water

Frequency: Water regularly, especially during dry periods.

Notes: Avoid overwatering, which can lead to root rot.

Humidity Requirements

Level: Moderate

Maintenance: No special methods are required for maintaining humidity.

Care InstructionsHarvest leaves when young and tender. Harvest seeds when mature and dry. Thin plants to provide sufficient space. Weed regularly.
Temperature Range

Min: 15°C

Max: 35°C

Alternative Namesgreen amaranth, Prince's Feather, Amaranthus patulus, Common Pigweed, Hell's Curse, Amaranthus chlorostachys, Slim Amaranth, Slender Amaranth
Tagetes patula
French marigold
Tagetes patula
French Marigolds can deter nematodes, which can be a pest for amaranth. They also attract beneficial insects.
Zea mays
Maize
Zea mays
Corn provides a natural support for taller amaranth varieties and can help with wind protection. Amaranth can also help suppress weeds around the corn.
Chenopodium album
Common Lambsquarters
Chenopodium album

Lamb's Quarters has similar growth habits and nutrient needs, competing for resources and sunlight.

Amaranthus palmeri
Palmer's Amaranth
Amaranthus palmeri

Palmer Amaranth is a very aggressive species with similar resource needs, competing for nutrients and space.

Leaf miners

Leaf miners create tunnels in the leaves, which can reduce the plant's ability to photosynthesize. Infestation appears as squiggly lines on the leaves.

Aphids

Aphids suck plant sap, causing leaves to curl and yellow. They are usually found on the stems and undersides of leaves.

Steps:

    • Start seeds indoors 6-8 weeks before the last frost or sow directly outdoors after the danger of frost has passed.
    • Plant seeds 1/4 inch deep and space them according to the variety (typically 12-18 inches apart).
    • Keep the soil moist until germination, which usually occurs within 1-2 weeks.
    • Thin seedlings to the appropriate spacing once they have a few sets of true leaves.

Neem Oil

Effective against aphids and other common pests.

Compost

Adds nutrients to the soil to support healthy growth.