My blueberry bushes are finally fruiting well, they've been in the ground for 6 years now but only this year I'm getting good harvest out of them.
>>2737642I started it in early April indoors, it's really worth doing, you get harvest whole month earlier but I still need to plant it somewhere I always end up starting more stuff than I have space for.
>>2737641For 20-30 cm pumpkin you'll want to use support, boat netting would be perfect for the job.
The heaviest pumpkin I grew without support was Hokkaido which grew up to 1.5 kg and about 10 cm of diameter (at most), I was afraid it would be too heavy but in the end only one pumpkin snapped off during severe rain shower.