Plum Tree Blooming in January? You Can't Stop It, But You Can Protect the Flowers

Your plum tree thinks January warmth means spring. Genetics drive this—some varieties bloom after any warm spell following chill hours. You can't reprogram the tree.

What You Can Do

If you're determined to save the blooms:

• Cover the entire tree to the ground with a tarp.
• Add a couple of 100-watt incandescent bulbs (old-school, not LED) for heat.
• This works only for light freezes (20s °F), not hard freezes.

Reality Check

Most years, early blooms freeze. The tree survives; you just lose that year's fruit. If consistent crops matter, plant a later-blooming variety like 'Methley' or 'Bruce'.