How Fast Will an American Plum Grow?

Growing Conditions

• The American plum grows naturally in woodland sites along creeks, lakes and boggy areas, so it's suited to growing in moist soil. However, it is highly adaptable and will survive drought conditions once established. Moist soil is especially crucial when the tree is young, because it promotes extensive root growth; this helps the tree survive when drought strikes. The correct sun exposure is also vitally important to growing American plum trees. Although they will tolerate light shade, the trees grow at their peak rate in full sun.

Care

• Very little care or hands-on maintenance is required to successfully grow your American plum trees, but routine care early on will promote healthy growth and allow the trees to reach their full potential. Water them weekly during their first summer in the ground, particularly in excessively hot or drought-like conditions. Supplemental irrigation is not required after the first year, except during periods of prolonged drought. Pruning, while not required, will promote a more attractive shape. Additionally, prune to remove damaged branches to help prevent the spread of infection or insect infestations.

Disease

• American plum trees are susceptible to diseases such as verticillium, rust and sooty mold, as well as insect pests such as aphids, beetle borers and spider mites. Systemic illnesses and insect infestations can impede the growth rate and longevity of American plum trees, but they are easily avoided. An appropriate planting site and suitable cultural practices prevent most problems from arising, as does choosing planting stock from a reputable source.

Considerations

• The American plum is a relatively short-lived tree in most areas, lasting fewer than 50 years in the ground. However, the fast growth rate means that older trees can be quickly replaced if they fail, which will help preserve their continuity in planned landscaping. Additionally, American plum trees may quickly outgrow their planting site if positioned too near structures or walkways, so choose a planting site with at least 10 feet of clearance on all sides to accommodate the tree's mature spread.