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Tradescantia x andersonia

  • 44 plantings
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  • 1 stashed

Belonging to the Tradescantia genus, Spiderwort has a botanical name of Tradescantia x andersonia.

Groundcover grass, although fairly tall -about 18-36inches (40-90 cm)

Soil too rich or too damp will cause them to flop over. Prefers average, slightly moist soil.

The flowers have three petals.

Propagate by division every 3-4 years


Blooms appear in these approximate colours:   Blue-violet.

It is a flower that typically grows as a perennial, which is defined as a plant that matures and completes its lifecycle over the course of three years or more.

Normally growing to a mature height of 90.0 cm (2.93 feet), Spiderwort grows with a ground covering habit. This plant tends to bloom in mid summer.

Some varieties of Spiderwort you may like to consider growing are: Sweet kate, Zwanenburg Blue, Innocence, Osprey and Shimmer Mixed.

Being a fairly low maintenance plant, Spiderwort is normally quite easy to grow provided a minimum level of care is given throughout the year. It will be helpful to note the correct soil, sun and water needs of this plant to ensure that this plant thrives.

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

How to grow Spiderwort

  • Partial Sun

  • Dappled Sun

  • Medium

Try to plant in a location that enjoys partial sun / dappled sun and remember to water moderately. Use Zone 3 - Zone 9 as your guideline for the appropriate climate for this plant. Keep in mind when planting that Spiderwort is thought of as hardy, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).

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

Growing Spiderwort from seed

As this plant is a hybrid variety, seeds cannot be saved as they will be sterile, or will not come true to plant.

Soil temperature should be kept higher than 20°C / 68°F to ensure good germination.

Transplanting Spiderwort

As Spiderwort is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

How long does Spiderwort take to grow?

These estimates for how long Spiderwort 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 Spiderwort to germinate?
15 days

Average 15 days | Min 15 days | Max 15 days (1)

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

Average days | Min days | Max days (0)

Days to Maturity How long until Spiderwort is ready for harvest / bloom?
+ 415 days

Average 415 days | Min 336 days | Max 727 days (7)

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

Other names for Spiderwort

Widow's tears, Day flower

Misspellings: Tradescantia andersoniana

Latest Spiderwort Reviews

  • Finished spreading black cedar mulch. This bed is now done for this year (unless I find a hosta I can’t do without)

    0 stars

    HollyBee about growing Spiderwort
  • The previous owner had planted this. I thought it was a weed, at first, but I love the blue and white flowers. I can depend on ’em in July and August.

    4 stars

    Silbennil about growing Spiderwort

See all Spiderwort reviews and experiences »


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