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Plant guide

Sandberg bluegrass.

Poa secunda

Pronounced POH-uh seh-KUN-duh

Also known as Canby's bluegrass, Nevada bluegrass, Pine bluegrass, Sandberg bluegrass, Sandberg's bluegrass, alkali bluegrass, big bluegrass, curly bluegrass

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Pine bluegrass
Photo by Matt Lavin (CC BY) via iNaturalist

Sandberg bluegrass is a hardy, cool season bunchgrass native to western North America. It is a fantastic choice for naturalizing in dry, sunny landscapes. This grass stays compact and provides a lovely texture to meadows or rock gardens.

At a glance

Care level
Easy
Plant type
Perennial grass
Light
Full sun
Indoor light
Direct sun
Water
Every 7 to 14 days
Mature size
1 to 2 feet
Growth rate
Medium
Hardiness
USDA 3 to 9
Bloom time
Late spring to early summer

Care

Plant this grass in well draining soil where it can soak up plenty of sun. It is quite drought tolerant once established, so avoid overwatering. Keep an eye out for yellowing leaves, which usually signal that the soil is staying too wet.

Watering
Water sparingly once established, allowing the soil to dry out completely between sessions.
Feeding
A light application of balanced fertilizer in early spring is plenty.
Pruning
Trim back dead foliage in late winter or early spring before new growth emerges.
Repotting
Only repot if the plant becomes root bound or you need to divide the clump.
Soil
Well draining rocky or sandy soil
Soil pH
6.0 to 8.0
Temperature
-40 to 35°C
Humidity
20 to 50%
Drought tolerance
High
Lifespan
Perennial, typically 5 to 10 years
Deer and rabbits
Moderate

Signs it needs repotting

  • Roots growing out of drainage holes
  • Water sitting on the surface
  • Plant looks crowded in the pot

Safety

People
There are no known toxic properties for humans.
Children
The blades can be sharp, so keep an eye on young children playing near dense clumps.
Contact allergens
The foliage can be sharp and may cause minor skin irritation if handled roughly.
Airborne allergens
The pollen can cause seasonal allergies in sensitive individuals.
Edibility
This grass is not intended for human consumption.

How to identify it

  • Dense tufted bunchgrass growth habit
  • Narrow, folded or rolled leaf blades
  • Small, pale green or purplish spikelets
  • Late spring to early summer flowering period
  • Fibrous, shallow root system
Height
0.2 to 0.6m
Spread
0.15 to 0.4m
Leaves
green, blue-green, deciduous
Flowers
green, straw, 0.5 to 1.5cm

Problems to watch for

  • Rust · Fungal spots may appear on leaves during periods of high humidity.

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Growing it

Propagation
seed, division
When to plant
fall, early spring
Overwintering
Leave the foliage standing through winter to protect the crown, then trim back in early spring before new growth appears.
In containers
It grows well in containers at least 30 cm deep with very gritty, fast-draining soil.

Seed

  1. Sow seeds in late fall or early spring.
  2. Cover lightly with soil.
  3. Keep moist until germination.

Division

  1. Dig up the clump in early spring.
  2. Separate into smaller sections.
  3. Replant immediately and water well.

Group this grass with other low-water prairie plants to create a low-maintenance meadow.

Grows well with

Similar species

Science

Family
Poaceae
Genus
Poa
Order
Poales
Class
Liliopsida
Native range
Western North America
Conservation
It is not currently listed as endangered or threatened.

It thrives in open, dry habitats where it survives by going dormant during the hottest, driest parts of the summer.

Value to wildlife
larval host plant, nesting material, seed source for birds
Pollinators
bees, butterflies
Uses
restoration planting, erosion control, ornamental bunchgrass, wildlife habitat

Through the year

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Flowering
Fruiting
Foliage

Ecological indicators

Salinity
2/9
Soil reaction
6/9
Light
8/9
Temperature
5/9
Moisture
2/9
Nutrients
3/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need much water?
No, it is very drought tolerant and prefers to dry out between waterings.
Can I grow it in a pot?
It does well in containers if they have excellent drainage.

Where the name comes from

Poa is the ancient Greek word for fodder, while secunda describes the one-sided flower clusters.

Good to know

  • It is one of the first grasses to green up in the spring.
  • The name secunda refers to the one-sided arrangement of the spikelets.
  • It is incredibly drought tolerant once established.

Also in

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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.