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Siberian bugloss / false forget-me-not

Brunnera macrophylla

Compiled by · Reviewed against CSU Extension & Plant Select® · Updated 2026-07-02

Siberian bugloss / false forget-me-not (Brunnera macrophylla) is a groundcover suited to the Colorado Front Range. It matures to about 12–18 in tall and 18–24 in wide, needs medium water, and prefers dappled sun to deep shade. Silver-marbled heart-shaped foliage + sky-blue forget-me-not flowers. Deer-resistant shade gem.

On the CSU listmedium water12–18 in tall and 18–24 in wideZones 1–3 (can be planted near the house)Deer-resistant

Photos

At a glance

Will it survive here?

Hardiness zones
USDA 3–8
Water needs
medium water
Sun
Best in dappled sun; tolerates deep shade. Flowers best with more sun.
Soil
loam
Soil pH
6.0–7.5
Hail tolerance
moderate
Wind tolerance
low
Salt tolerance
low
Firewise (defensible space)
Zones 1–3 (can be planted near the house)
Site uses
Cool north foundations, Dry shade under conifers

How big, what shape?

Mature size
12–18 in tall and 18–24 in wide
Growth habit
Clumping
Planting spacing
~17–24 in apart

What it looks like, and when

Bloom time
mid spring, late spring
Bloom color
blue
Foliage
Deciduous
Winter cover
Bare in winter

What it will do to your yard

Foot traffic
No foot traffic

Who else benefits

Pollinator value
moderate
Deer
Generally deer-resistant
Colorado native
No

Using Siberian bugloss / false forget-me-not as a groundcover

Siberian bugloss / false forget-me-not grows in tidy clumps. It fills in to a moderately dense cover. It dies back in winter, leaving the ground bare until spring.

Frequently asked questions

Is Siberian bugloss / false forget-me-not good for the Colorado Front Range?
Yes, Siberian bugloss / false forget-me-not is a well-suited groundcover for Colorado's Front Range.
How big does Siberian bugloss / false forget-me-not get?
It matures to about 12–18 in tall and 18–24 in wide.
How far apart do I plant Siberian bugloss / false forget-me-not?
Space Siberian bugloss / false forget-me-not about 17 in apart for a faster, fuller cover, or up to 24 in apart for a looser planting.
Is Siberian bugloss / false forget-me-not hardy on the Front Range?
Siberian bugloss / false forget-me-not is hardy in USDA 3–8. The Colorado Front Range spans roughly USDA 4b–6a, so it is well within range.
How much water does Siberian bugloss / false forget-me-not need?
It needs medium water once established.
Is Siberian bugloss / false forget-me-not native to Colorado?
No. It is not a Colorado native, but it grows well on the Front Range.
Is Siberian bugloss / false forget-me-not deer-resistant?
Siberian bugloss / false forget-me-not is generally considered deer-resistant, though no plant is deer-proof when browse pressure is high.
Is Siberian bugloss / false forget-me-not a good firewise plant near the house?
Siberian bugloss / false forget-me-not is a lower-fuel choice suitable in defensible-space zones 1–3, it can be planted near the house when kept well irrigated and maintained. This is general suitability guidance based on CSU Extension firewise plant lists, not a guarantee that any plant won't burn, a well-irrigated, well-maintained plant is the goal. Follow CSU Extension defensible-space guidance and check with your local fire district before planting in the wildland-urban interface.
Can you walk on Siberian bugloss / false forget-me-not?
Siberian bugloss / false forget-me-not isn't meant for foot traffic, site it where you won't need to walk across it.
Will Siberian bugloss / false forget-me-not spread or stay put?
Siberian bugloss / false forget-me-not is clumping. Give it room to fill in and edit the edges to keep it where you want it.
Does Siberian bugloss / false forget-me-not stay green in winter?
No, Siberian bugloss / false forget-me-not dies back in winter and leaves the ground bare until it returns in spring.

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See also

Related groundcover

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