North America Non-native Plant

Soulard Crab

Botanical name: Malus ×soulardii

USDA symbol: MASO3

Life cycle: perennial

Habit: tree

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Pyrus ×soulardii L.H. Bailey (PYSO)   

Soulard Crab: A Hardy Hybrid Worth Considering for Your Landscape Meet the Soulard crab (Malus ×soulardii), a fascinating hybrid that bridges the gap between wild and cultivated. This sturdy little tree might not be a native purebred, but it’s got some serious charm and resilience that makes it worth a ...

Soulard Crab: A Hardy Hybrid Worth Considering for Your Landscape

Meet the Soulard crab (Malus ×soulardii), a fascinating hybrid that bridges the gap between wild and cultivated. This sturdy little tree might not be a native purebred, but it’s got some serious charm and resilience that makes it worth a second look for your garden or landscape.

What Exactly Is a Soulard Crab?

The Soulard crab is a natural hybrid that occurs when our native prairie crabapple (Malus ioensis) gets friendly with the common apple (Malus pumila). Think of it as nature’s own experiment in plant breeding! While it’s technically non-native due to its mixed parentage, this tree has been reproducing on its own in the wild across Illinois, Massachusetts, Minnesota, and Missouri.

You might also see it listed under its old scientific name, Pyrus ×soulardii, but botanists have since moved it into the Malus genus where it belongs with other apples and crabapples.

Why You Might Want This Tree in Your Yard

The Soulard crab brings several appealing qualities to the table:

  • Spring Beauty: Clusters of white to pink flowers create a stunning display in late spring
  • Fall Interest: Small red-orange crabapples add color and feed wildlife through autumn
  • Tough as Nails: This hybrid inherited hardiness from both parents, making it quite resilient
  • Pollinator Friendly: Spring blooms attract bees and other beneficial insects
  • Wildlife Magnet: Birds love those little fruits, especially during migration

Where Does It Fit in Your Landscape?

This perennial tree works beautifully as a specimen plant in smaller yards or as part of a naturalized landscape. It’s particularly well-suited for:

  • Prairie-style gardens
  • Wildlife-friendly landscapes
  • Urban settings where toughness matters
  • Areas where you want four-season interest

As a tree that can reach over 13-16 feet in height with proper growing conditions, it provides nice scale without overwhelming smaller properties.

Growing Your Soulard Crab Successfully

Climate Needs: Hardy in USDA zones 4-8, so it can handle both cold winters and hot summers like a champ.

Sun and Soil: Give it full sun for the best flowering and fruiting. It’s adaptable to various soil types but appreciates well-draining conditions.

Planting Tips: Spring planting works best. Dig a hole twice as wide as the root ball but no deeper. Water regularly the first year while roots establish, then this tree becomes quite drought tolerant.

Ongoing Care: Minimal fuss required! Light pruning in late winter if needed, but these trees generally maintain a nice shape on their own.

A Word About Native Alternatives

While the Soulard crab is a lovely tree, if you’re focused on supporting native ecosystems, consider planting its native parent instead. The prairie crabapple (Malus ioensis) offers similar benefits with pure native genetics. Other native alternatives include serviceberries (Amelanchier species) or native hawthorns (Crataegus species), which provide comparable spring flowers, fall fruit, and wildlife value.

The Bottom Line

The Soulard crab sits in that interesting middle ground – not quite native, not invasive, but certainly useful. It’s a hardy, attractive tree that requires minimal care once established and provides genuine benefits to pollinators and wildlife. Whether you choose this hybrid or opt for its native parent, you’ll be adding a beautiful, functional tree to your landscape that connects you to the natural world around you.

Soulard Crab

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Rosales

Family

Rosaceae Juss. - Rose family

Genus

Malus Mill. - apple

Species

Malus ×soulardii (L.H. Bailey) Britton (pro sp.) [ioensis × pumila] - Soulard crab

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA