Growing boysenberry / tayberry
berry / bush fruit
WINTER CHILL NEEDED
~300–500 hrs
POLLINATION
Self-fertile — one plant crops on its own
Pollination
Self-fertile.
Growing it
Zones 5-9. Trailing blackberry-raspberry hybrids with large, soft, aromatic fruit. Canes need a trellis; train this year's canes to one side and fruit the other.
Will you get enough chill?
Boysenberry / Tayberry needs roughly 300–500 hours between 32 and 45 °F over winter to break dormancy evenly. Check your area with the chill hours calculator. Low-chill breeding has pushed many varieties well below the figure here, so read the plant tag.
Chill and pollination are given at the fruit-type level; specific cultivars can differ. Values are typical ranges for home-garden planning.