I grew runtz outdoors. She was 50/50 indica sativa. Only had issues in mid flower cuz it was end of October and weather was terrible.hindu kush very prone to bud rot if its humid. or wet when they go into flower so not a great plant to grow outdoors in the uk. they prefer warmer dryer climates. but if you got the seeds and you can induce flowering give it a go. if you growing in your garden and it rains give the stems of the plants. a good shake to get excess water off every time it rains
I'm from Birmingham so the weather lasts a bit longer.I'm in the UK where I am is to far north for photo,s, it's generally to cold outside of the occasional warm spells, the ave humidity throughout the year is shit.
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We get the autumn rain early August frost by the end of October.
It's less than ideal lol