How much water does Pinus monophylla need once established?

This tree tolerates low water well and is adapted to dry, rocky slopes with infrequent rainfall. Established trees rarely need supplemental irrigation outside of prolonged drought.

When does Pinus monophylla produce pollen and seed cones?

Like other pinyon pines, it releases pollen from its male cones in spring, generally around May, with seed cones maturing over the following one to two years.

What kind of soil does Pinus monophylla prefer?

It grows best in well-drained, rocky or gravelly soils typical of dry mountain slopes and does poorly in heavy, poorly drained ground.

How much sun does Pinus monophylla need?

Full sun is best for healthy growth, though young trees can tolerate some part sun in more exposed, high-elevation sites.

Is Singleleaf Pinyon Pine toxic to livestock?

Singleleaf Pinyon Pine is listed as toxic to grazing livestock such as cattle, sheep, and goats (slight severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.

Is Singleleaf Pinyon Pine HOA-friendly?

Singleleaf Pinyon Pine is generally an HOA-friendly choice in the right placement, with low maintenance.

Singleleaf Pinyon Pine

Name: Pollinator Patch
Author: Pollinator Patch

Pinus monophylla

Last reviewed: September 2026

Pinus monophylla is a slow-growing evergreen conifer with single stiff blue-green needles, well suited to full sun and dry, rocky soils in arid mountain woodlands.

Toxicity unknown

Singleleaf Pinyon Pine (Pinus monophylla) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Singleleaf Pinyon Pine is listed as toxic to grazing livestock (cattle, sheep, and goats) at a slight level by the USDA PLANTS Database (opens in new tab). This is a livestock indicator and is separate from pet toxicity.

Light

full sun

Water

low

Size

240"–480" H × 180"–360" W

Bloom

N/A

Native to

AZ, CA, ID, NV and 1 more states

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Browse plants for this ecoregion

Sierra Nevada Central California Foothills and Coastal Mountains Southern California Mountains Central Basin and Range Mojave Basin and Range Northwestern Forested Mountains North American Deserts Arizona/New Mexico Mountains Chihuahuan Deserts Madrean Archipelago Sonoran Basin and Range Southern California/Northern Baja Coast

Singleleaf pinyon pine is a slow-growing evergreen tree with distinctive single needles and a rounded, compact crown. This drought-tolerant pine produces edible nuts and maintains an attractive shape without pruning. It provides year-round structure to the landscape.

Growing Singleleaf Pinyon Pine

Grow Singleleaf Pinyon Pine in full sun and low water. Mature plants reach 240 to 480 inches tall and spread 180 to 360 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Singleleaf Pinyon Pine is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Very slow growth may frustrate impatient neighbors
Large mature size requires adequate spacing

Wildlife value

This pine provides seeds that feed birds, squirrels, and other wildlife. The dense branching offers nesting sites and shelter for various bird species.

Common questions

How much water does Pinus monophylla need once established?: This tree tolerates low water well and is adapted to dry, rocky slopes with infrequent rainfall. Established trees rarely need supplemental irrigation outside of prolonged drought.
When does Pinus monophylla produce pollen and seed cones?: Like other pinyon pines, it releases pollen from its male cones in spring, generally around May, with seed cones maturing over the following one to two years.
What kind of soil does Pinus monophylla prefer?: It grows best in well-drained, rocky or gravelly soils typical of dry mountain slopes and does poorly in heavy, poorly drained ground.
How much sun does Pinus monophylla need?: Full sun is best for healthy growth, though young trees can tolerate some part sun in more exposed, high-elevation sites.
Is Singleleaf Pinyon Pine toxic to livestock?: Singleleaf Pinyon Pine is listed as toxic to grazing livestock such as cattle, sheep, and goats (slight severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.
Is Singleleaf Pinyon Pine HOA-friendly?: Singleleaf Pinyon Pine is generally an HOA-friendly choice in the right placement, with low maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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