Grape Hyacinth

Muscari armeniacum

Needs nothing and stops for nothing — plant it where a spreading colony is welcome rather than where it is not.

Light Sun or light shade; it is not fussy.
Water No watering needed once it is established.
Height 20 cm
Spread 3.9 in
Spacing 10 cm
Root depth 4–10 in
Type
Flower · Perennial
Botanical family
Mixed / other
Foliage color
Green
Flower color
Blue
Sunlight
Sun or light shade; it is not fussy.
Watering
No watering needed once it is established.
Feeding
No feeding required.
Frost tolerant
Yes
Flowering
March
Pruning
Let the foliage die back on its own.
  • Feb–Mar Spring Growth
  • Mar–May Flowering
  • May–Jun Growing
  • Jun–Dec Leaf Fall
  • Jan–Feb Leaf Fall
Plant spacing
3.9 in
In-row spacing
3.9 in
Between rows
5.1 in
Square-foot density
Not suited to SFG
Root system
A bulb with fine roots beneath it
Working depth
4–10 in
Can reach
16 in down where the soil allows
Spread
2–4 in across, about 0.5–1× the width of the plant
Shallowest pot
8 in of soil

Roots thread down from the base plate each season and are shed each season, and they go no further out than the leaves. Everything the bulb will store for next year is gathered in that narrow circle before the foliage yellows, which is why cutting the leaves early costs a flower.

The habit is Grape Hyacinth’s own; the figures are what that habit usually comes to at this size, not a measurement of this species. Roots follow the soil either way: a compacted pan, a high water table or heavy clay stops them well short of any of it, and deep open ground lets them go further.

Cats and dogs
Confirmed safe

We say a plant is safe only where a named poison-control reference names that exact species and records it as non-toxic to both cats and dogs. Most plants are on nobody’s list, and their absence here is not a judgement about them. This is a record of what those references say, not veterinary advice, and it cannot account for your own animal, the quantity eaten, or a plant treated with anything.

The same species is filed again as Muscari Armeniacum.

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