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Checker Bloom

Sidalcea malviflora

perennial herb View on Calscape

Care

Sun

full sun, part shade

Water

low

Soil

well-drained to moist; tolerates clay

Size

1–3ft tall , 1–2ft wide

Bloom

Mar-Jun · pink, magenta

Foliage

Deciduous

Deer

Resistant

Container

Friendly

Flowers

Prized

Native Range

California and Oregon coastal grasslands and openings

Spikes of hollyhock-like pink flowers

Native hollyhock relative; lovely in meadow or border plantings

Care Guide

Planting

Plant Checker Bloom in full sun in a location with well-drained to moist soil - it's remarkably flexible and tolerates clay, sandy, and even serpentine soils. Plant in fall or early winter to take advantage of the damp season this California native prefers. Space plants 1–2 feet apart; this plant can work as a groundcover if you're planting multiples. It tolerates cold down to 0–10°F, so it's well-suited to Bay Area winters.

After Planting

Water regularly during the first growing season to establish the plant, then shift to the summer dry schedule it evolved for: once established, water no more than once a month in summer, or let rainfall handle it entirely. Expect the plant to die back in winter - this is normal deciduous behavior, not a sign of failure. The #1 mistake is overwatering in summer; Checker Bloom comes from dry meadows and will rot if kept consistently wet. Note that it sometimes behaves like an annual, so if your plant doesn't return, you can simply reseed.

Visit Calscape for more information about Checker Bloom

Endangered & Threatened Species Supported

Vandyk's bumblebee Bombus vandykei
CA: Endangered, CA Special Concern

Vandyk's bumblebee; California state endangered; species of special concern

Wildlife Supported

Insects

Pollen · Spring

Peak foraging Mar-Jun during bloom season; specialist pollinator

Pollen · Spring

Specialist bee visiting during bloom Mar-Jun

Pollen · Spring

Spring foraging for female provisioning Mar-Jun

Nectar · Spring

Early spring blooms coincide with queen emergence and colony founding

hig Honey bee
Nectar · Spring

Spring bloom provides early nectar sources for hive establishment

Nectar · Spring

Spring-early summer foraging during bloom period

Pollen · Spring

Early spring specialist, synchronizes with bloom period

Larval Host · Spring

Larval host plant, synchronous with spring blooms

+6 more species

Where to Buy

East Bay Wilds

2110 Eighth St, Suite 202, Berkeley

Fri 9:30am-4pm (occasional Sat, call ahead)

1.5 mi (510) 409-5858 Website
Native Here Nursery

101 Golf Course Dr, Tilden Regional Park, Berkeley

Sat 10am-2pm

3.0 mi (510) 549-0211 Website
Curious Flora

12040 San Pablo Ave, Richmond

Daily 9am-4pm

7.0 mi (510) 215-3301 Website