50 Disease-Resistant Crabapples

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20180629A Purple_prince Bruce Martin, WC.JPG

Malus ‘Purple Prince’ is just one of many crabapples that will need no treatment to prevent disease. Source: Bruce Martin, Wikimedia Commons

There are few temperate-climate ornamental trees that are as popular as crabapples … nor that cause their owners such a hassle. Indeed, crabapples often make you pay for their beautiful, but brief bloom and (sometimes) stunning fruits by coming down with all kinds of diseases and insects, including the extremely annoying apple scab disease, one that can, in the worst years of infestation, cause susceptible crabapples to lose almost all of their leaves in midsummer. Cedar-apple rust and powdery mildew, although less serious, can cause highly visible damage, while fire blight just doesn’t defoliate or mark leaves, but kills entire branches and even the entire tree over time.

Crabapple diseases are so common many tree owners feel obliged to spray their crabapples with fungicides several times a year just to keep them looking good.

But there is good news! There are now crabapples that are considered very disease resistant* and these are the ones laidback gardeners should be considering for their gardens.

Put the following list on your telephone next time you go shopping for an ornamental crabapple!

  1. M. ‘Adams’ zone 4
  2. M. ‘Adirondack’ zone 4
  3. M. American Spirit™ (‘Amerspirzam’) zone 4
  4. M. baccata ‘Jackii’ zone 3
  5. M. ‘Cardinal’ zone 4

    20180629C M. David www.cirrusimage.com.JPG

    Malus ‘David’. Source: www.cirrusimage.com

  6. M. ‘David’ zone 4
  7. M. ‘Dolgo’ zone 2b
  8. M. ‘Donald Wyman’ zone 4
  9. M. Emerald Spire® (‘Jefgreen’) zone 3
  10. M. floribunda zone 4b
  11. M. Gladiator® (‘Durleo’) zone 2
  12. M. Golden Raindrops® (‘’Schmidtcultleaf’’) zone 3
  13. M. ‘Henry Kohankie’ zone 4
  14. M. Holiday Gold™ (‘Hozam’) zone 4
  15. M. ‘Indian Summer’ zone 3
  16. M. Ivory Spear™ (‘JFS KW214MX’) zone 4
  17. M. Lancelot (‘Lanzam’) zone 4
  18. M. ‘Liset’ zone 4
  19. M. Lollipop® (‘Lollizam’) zone 3
  20. M. ‘Louisa’ zone 4
  21. M. Madonna™ (‘Malzam’) zone 4
  22. M. Marilee® (‘Jarmin’) zone 4
  23. M. ‘Maybride’ zone 4

    20180629B Malus Molten Lava, plants.gertens.com .jpg

    Malus ‘Molten Lava’. Source: plants.gertens.com

  24. M. ‘Molten Lava’ zone 4
  25. M. ‘Ormiston Roy’ zone 4
  26. M. Perpetu ‘Evereste’ zone 4
  27. M. Pom’zai® (‘Courtabri’) zone 4b
  28. M. Pink Princess™ (‘Parrsi’) zone 5
  29. M. ‘Pink Spires’ zone 2
  30. M. ‘Prairifire’ zone 4
  31. M. ‘Professor Sprenger’ zone 4
  32. M. ‘Purple Prince’ zone 3b
  33. M. Purple Spire® (‘Jefspire’) zone 3
  34. M. Raspberry Spear (‘JFS KW123MX’) zone 4
  35. M. Rejoice™ (‘Rejzam’) zone 4
  36. M. ‘Robinson’ zone 4
  37. M. ‘Royal Beauty’ zone 2
  38. M. Royal Mist® (‘Jefmist’) zone 2

    20180629D Malus-Royal-Raindrops bettenlandscapedesign.com.jpg

    Malus Royal Raindrops™. Source: bettenlandscapedesign.com

  39. M. Royal Raindrops™ (‘JFS-KW5’) zone 4
  40. M. ‘Royal Splendor’ zone 3
  41. M. Ruby Dayze™ (‘JFS KW139MX’) zone 4
  42. M. Ruby Tears™ (‘Bailears’) zone 4
  43. M. ‘Rudolph’ zone 2
  44. M. sargentii zone 4
  45. M. sargentii Firebird (‘Select A’) zone 3
  46. M. sargentii ‘Tina’ zone 4
  47. M. ‘Sentinel’ zone 4
  48. M. ‘Sir Lancelot’ zone 3
  49. M. ‘Sparkling Sprite™ (‘JFS-KW207’) zone 4
  50. M. ‘Strawberry Parfait’ zone 4
  51. M. Starlite® (‘Jefstar’) zone 2

    20180620E Sugar Tyme plants.stonegategardens.com.jpg

    Malus Sugar Time®. Source: plants.stonegategardens.com

  52. M. Sugar Tyme® (‘Sutyzam’) zone 4
  53. M. Winter Gem™ (‘Glen Mills’) zone 3b
  54. M. x zumi‘Calocarpa’ zone 5

*In test sites across North America, the cultivars listed have shown good to excellent resistance to the four main apple diseases: apple scab, apple-cedar rust, powdery mildew and fire blight. That means:

Excellent disease resistance: no symptoms of the disease are normally seen and no control measures are necessary.

Good disease resistance: occasionally, minor symptoms of the disease are present, but no control measures are necessary.

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