How much sun does Slim Milkweed need?

Slim Milkweed grows best in full sun conditions.

When does Slim Milkweed bloom?

Slim Milkweed blooms in March, April, May, June, July, August, September, October, and November.

Where is Slim Milkweed native?

Slim Milkweed (Asclepias linearis) is native to TX, per vouchered herbarium specimen records and regional native plant society lists.

Is Slim Milkweed toxic to dogs?

Yes. Slim Milkweed is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.

Is Slim Milkweed toxic to cats?

Yes. Slim Milkweed is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.

What pollinators does Slim Milkweed attract?

Slim Milkweed draws butterflies and bees.

Is Slim Milkweed HOA-friendly?

Slim Milkweed is generally an HOA-friendly choice in the right placement, with low maintenance.

Slim Milkweed

Name: Pollinator Patch
Author: Pollinator Patch

Asclepias linearis

Last reviewed: September 2026

Slim Milkweed is toxic to dogs and cats.

Listed as toxic by the ASPCA Animal Poison Control Center (opens in new tab) (last reviewed 2026-08-15). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435and your veterinarian's emergency line.

Pollinator Patch flags toxic plants so you can choose a pet-safe native alternative for your yard.

Light

full sun

Water

low

Size

12"–24" H × 12"–12" W

Bloom

Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov

Native to

Pollinators

butterflies, bees

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 450 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Cross Timbers Southern Texas Plains Texas Blackland Prairies Western Gulf Coastal Plain

Slim Milkweed is a graceful native perennial with narrow, linear leaves and small white flowers that bloom from spring through fall. This drought-tolerant plant maintains a compact, upright form and requires minimal care once established.

In an HOA neighborhood

Slim Milkweed is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

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

Wildlife value

Essential host plant for monarch butterfly caterpillars and provides nectar for various butterflies and bees. The long blooming season offers consistent pollinator support throughout most of the growing year.

Common questions

How much sun does Slim Milkweed need?: Slim Milkweed grows best in full sun conditions.
When does Slim Milkweed bloom?: Slim Milkweed blooms in March, April, May, June, July, August, September, October, and November.
Where is Slim Milkweed native?: Slim Milkweed (Asclepias linearis) is native to TX, per vouchered herbarium specimen records and regional native plant society lists.
Is Slim Milkweed toxic to dogs?: Yes. Slim Milkweed is listed as toxic to dogs by the ASPCA Animal Poison Control Center (aspca.org). If your pet has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
Is Slim Milkweed toxic to cats?: Yes. Slim Milkweed is listed as toxic to cats by the ASPCA Animal Poison Control Center (aspca.org). If your cat has been exposed, call the ASPCA Animal Poison Control Center at (888) 426-4435.
What pollinators does Slim Milkweed attract?: Slim Milkweed draws butterflies and bees.
Is Slim Milkweed HOA-friendly?: Slim Milkweed is generally an HOA-friendly choice in the right placement, with low maintenance.

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.

Pollinator Patch flags toxic plants like Slim Milkweed and shows pet-safe natives for your ecoregion instead.

Find pet-safe natives

iPhone app Android app

Not sure where to start? Take the 2-minute yard quiz