Growing a centennial in zone 10A in a half barrel planter. It loves growing straight up (it’s about 12 ft to the wire), but side arms seem small and only growing on the upper third of the bines. Is this normal?
Admittedly I’m light on the fertilizer. I added one large dressing of compost in the winter and one small one a few months ago.
Watering is automatic every other day.
We’ve had some 85F+ heat waves this year. I guess this could have stunted the plant, but the frequent watering should negate that (hopefully).
Pest activity is low. So which is the more likely culprit? Needs more fertilizer, less heat, different watering schedule?
Admittedly I’m light on the fertilizer. I added one large dressing of compost in the winter and one small one a few months ago.
Watering is automatic every other day.
We’ve had some 85F+ heat waves this year. I guess this could have stunted the plant, but the frequent watering should negate that (hopefully).
Pest activity is low. So which is the more likely culprit? Needs more fertilizer, less heat, different watering schedule?