Soil depth for raspberries
Hi! I’m planting raspberries next to my driveway. While installing my trellis I realized that the “soil” is mostly gravel covered with a thin layer of mulch. To what depth should I fill with soil or compost to allow the raspberries to grow? Thank you!
Multnomah County Oregon raspberries
Thank you for your question. OSU recommends that raspberries be planted in raised bed gardens of 1.5 to 2 feet deep. You can read about this plant’s needs here: https://ir.library.oregonstate.edu/downloads/0p096714f On one hand, the gravel/mulch base will provide good drainage. On the other hand, the bedding structure and height may make it a challenge for anyone trying to open a car door (not to mention the thorns). But, good luck!