Successfully growing kiwi means avoiding some common mistakes that even experienced gardeners make. My first harvest was eventually lost because I overpruned the plant. This is one of the very mistakes that I now coach others not to make. Kiwis require specific needs, from soil preparation to seasonal pruning. Let's examine the most common pitfalls.
Pruning Errors
- Cutting more than 30% of summer growth
- Using dull tools that tear bark
- Ignoring fruiting wood identification
Soil Issues
- Planting in pH above 6.5 without amendments
- Failing to test soil for magnesium levels
- Using fresh manure that burns roots
Climate Oversights
- Not wrapping trunks below Zone 6 winters
- Missing frost dates for young vines
- Ignoring windbreak needs in exposed areas
Root rot from too much water kills more vines than pests. I have now lost three plants after installing moisture meters. Kiwis need deep, infrequent water applications; once a week for clay soils, and twice for sandy loam. Use the knuckle test. If the soil sticks to your knuckles, then you need to skip the watering.
Container Plants
- Check drainage holes weekly
- Water until 20% runoff occurs
- Reduce frequency in dormancy
Ground Vines
- Install drip lines 18" from trunk
- Use 2" wood chip mulch layer
- Avoid overhead watering post-bloom
Frost protection distinguishes survivors from casualties. After losing the buds in June of 2021 to a late-season freeze I now layer on thermal blankets of protection at anything below 28°F (-2°C). I burlap wrap trunks around my trees when temperatures drop to or below -10°F (-23°C). Record frosts in your microclimate religiously.
Read the full article: How to Grow Kiwi: Expert Guide for Home Gardeners
