The location where you want to plant your ladies is very important. Since they are sun lovers you must look for the sunniest location available. More sun hours means bigger, fatter and stickier buds! When possible look for a location where shade will be available early in the evening. This sounds contradictory but due to the early shade they will produce their buds earlier. Which will probably result in bigger harvest, but also less chance of rot. So when you have a location whit sun from around 9AM till 6PM choose that one.
If you want to play safe you can use autoflower seeds in stead of feminised seeds. They will be harvest-ready in about 12 weeks. When planted at the right time of year they will have loads of sunlight. And because they will be finished before autumn the chance of rain also decreases and you wont see your lovely buds rot.
However, don’t plant them too early because they will need some sun and heath the first weeks. If you want to play safe use a propagator in a sunny location, this will help them develop into lovely plants. In the UK and northern part of Europe you can start germinating at the end of May. The wheather is warm enough and you can harvest them somewhere in August. In southern Europe you can already start in March. And with a bit of luck you can harvest three times a year when using autoflower seed.
Keep in mind that autoflowers normally produce less than feminised seeds. Since they grow just a couple of weeks before they start flowering there is normally less plant to produce buds.