Blue Dream has two top-rated parents in Blueberry and Super Silver Haze. This Californian weed strain is 70% sativa which produces high THC levels in under 10 weeks of flowering.Blue Dream is a highly-rated US cannabis variety. It has great hybrid vigour and is a very string and stable plant. It tends to stretch quite a lot during flowering and so indoor growers are encouraged to veg. for a short time only in order to keep it well under control. Outdoors it can reach a height of up to 4 meters! Indoor-grown plants will yield between 350 - 500 gr/m2 in 65 - 70 days while outdoors is where the real action takes place; individual plants can yield between 2 and 3 kilos each for mid-October harvests in northern latitudes! Leaves and buds will turn blue especially where the night-time temperature drops by 10°C.