American Beauty Plum

Tree

American Beauty Plum

Prunus domestica 'American Beauty'

Also known as: Garden plum (cultivar group)

Tree Rosaceae EdiblePollinatorWildlife AttractorOrnamental
Hardiness Zone
4-8
Ideal Temp
35–85°F
Survives Down To
-25°F
Life Cycle
Perennial

American Beauty plum is a named European plum cultivar (Prunus domestica) grown for large, freestone purple-red fruit with amber flesh and sweet-tart fresh-eating quality. Trees are typical deciduous orchard plums, forming a rounded crown roughly 12–18 feet (3.5–5.5 m) under standard rootstocks and pruning, with white spring blossoms that open before full leaf expansion. It suits temperate backyard orchards and food forests where winter chill hours accumulate and late frosts are managed. ☀️💧 Sun and Water Requirements: Full sun for reliable bloom, fruit set, and sugar development. Deep, well-drained loam is ideal; avoid chronic wet feet that invite root rots. Provide steady soil moisture from bloom through pit hardening, then taper before harvest to concentrate flavor. Mulch to preserve even soil moisture. ✂️ Propagation: Commercial trees are grafted onto Prunus rootstocks; bench graft in late winter or bud in summer using scion wood from known-true trees. Seedlings vary wildly and are useful only for rootstock experiments. Hardwood cuttings of plums are unreliable for beginners compared with grafting. 🌾 Harvest / Best Use Timing: Pick when fruit yields slightly to gentle pressure and background color shifts from green to full purple-red—timing varies by season heat. Use immediately for fresh eating, or process into jam, sauce, and dried prunes within days of peak ripeness.

Good Neighbors
  • Comfrey — deep taproot mines nutrients; chop-and-drop mulch feeds shallow plum roots
  • Chives — low alliums that tolerate sun without competing for deep moisture
  • White Clover — living mulch fixes nitrogen at the dripline without tall competition
Cautions
  • Brown Rot — remove mummified fruit and prune for airflow to reduce fungal pressure
  • Fire Blight — less common on plum than apple/pear but sanitize tools on suspicious ooze
Known Threats — Organic Solutions Only
Apple Maggot
Rhagoletis pomonella
Apple Scab
Venturia inaequalis
Bagworm
Thyridopteryx ephemeraeformis
Blackberry Psyllid
Cacopsylla curvata
Brown Marmorated Stink Bug
Halyomorpha halys
Brown Rot
Monilinia fructicola
Cherry Fruit Fly
Rhagoletis cingulata
Codling Moth
Cydia pomonella
Cyclamen Mite
Steneotarsonemus pallidus
Eastern Tent Caterpillar
Malacosoma americanum
Fall Webworm
Hyphantria cunea
Fire Blight
Erwinia amylovora
Gall Mite
Eriophyidae
Harlequin Ladybird
Harmonia axyridis
Japanese Beetles
Popillia japonica
Leaf Blight
Various Fungal Pathogens
Leaf Spot
Multiple species (e.g., Cercospora, Septoria, Alternaria)
Lesser Peachtree Borer
Synanthedon pictipes
Oriental Fruit Fly
Bactrocera dorsalis
Oriental Fruit Moth
Grapholita molesta
Peach Twig Borer
Anarsia lineatella
Peachtree Borer
Synanthedon exitiosa
Pear Psylla
Cacopsylla pyricola
Plum Curculio
Conotrachelus nenuphar
Raspberry Beetle
Glischrochilus sanguinolentus
Raspberry Cane Borer
Oberea perspicillata
Rose Slug
Endelomyia aethiops
Rust Mite
Eriophyidae
Sparganothis Fruitworm
Sparganothis sulfureana
Spittlebugs
Cercopidae
Spotted Lanternfly
Lycorma delicatula
Stink Bug
Pentatomidae
Strawberry Root Weevil
Otiorhynchus ovatus
Tent Caterpillar
Malacosoma spp.
Twig Girdlers
Oncideres spp.
Vine Weevil
Otiorhynchus sulcatus