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Summer poinsettia

Amaranthus tricolor

  • 11 plantings
  • 6 for swap
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Summer poinsettia is part of the Amaranthus genus. Its scientific name is Amaranthus tricolor. The botanical name epithet for Summer poinsettia (tricolor) means 'in three colours'.

Amaranthus tricolor is an ornamental plant known as Joseph’s coat, after the Biblical figure Joseph, who is said to have worn a coat of many colors. Cultivars have striking yellow, red and green foliage. 1

The leaves may be eaten as a salad vegetable. In Africa, it is usually cooked as a leafy vegetable. 1

It appears on the coat of arms of Gonville and Caius College, Cambridge where it is called “flowers gentle”. 1

It is a flowering ornamental / herb that typically grows as an annual, which is defined as a plant that matures and completes its lifecycle over the course of a single year.

Summer poinsettia normally grows with a clump-forming habit to a mature height of 45.0 cm (that's 1.46 feet imperial).

Summer poinsettia is normally quite a low maintenance plant and is normally very easy to grow - great for beginner gardeners!

This plant info is provided by the myfolia gardener's wiki. All details about Summer poinsettia have been kindly provided by our members.

How to grow Summer poinsettia

  • Full Sun

Try to plant in a location that enjoys full sun. Use Zone 8 - Zone 11 as your guideline for the appropriate climate for this plant. Keep in mind when planting that Summer poinsettia is thought of as tender, so it is really important to ensure that the outside temperature is well above freezing before planting or moving outdoors.

See our list of companion Plants for Summer poinsettia to see which plants you should plant in close proximity to encourage growth.

Growing Summer poinsettia from seed

Ensure a seed sowing distance of 5.85 inches (15.0 cm). Soil temperature should be kept higher than 20°C / 68°F to ensure good germination.

By our calculations*, you should look at sowing Summer poinsettia about 28 days before your last frost date .

Transplanting Summer poinsettia

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Summer poinsettia is a tender plant.

How long does Summer poinsettia take to grow?

These estimates for how long Summer poinsettia takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Start logging and journaling your observations to participate!

Days to Germination How long does it take Summer poinsettia to germinate?
10 days

Average 10 days | Min days | Max days (0)

Days to Transplant How long until I can plant out Summer poinsettia?
+ days

Average days | Min days | Max days (0)

Days to Maturity How long until Summer poinsettia is ready for harvest / bloom?
+ 100 days

Average 100 days | Min days | Max days (0)

Total Growing Days How long does it take to grow Summer poinsettia?
= days

When should I plant Summer poinsettia?

Our when to plant Summer poinsettia estimates are relative to your last frost date.

Enter your frost dates and we'll calculate your sowing and planting dates for you!

When to sow The number of days to sow Summer poinsettia before or after your last frost date.
28 days before Last Frost Date

Summer poinsettia Etymology

The botanical epithet is from the Latin tricolor meaning “in three colours”

Other names for Summer poinsettia


Amaranthus tricolour

Misspellings: Yin choi

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