When it comes to sedums and sempers and similar plants I have noticed that the colors I end up with are not always the same as the pictures show. Colors change by season, water levels and maybe nutrient levels as well. Not all plants show the color changes to the same degree as others.

My question is has anyone noticed a trend? For example if the plant is typically described as green with purple edges what conditions result in this? Assuming a plant is an alpine type meaning it prefers dryish conditions and low fertility is that when the plants exhibit their 'typical' look? If ferts go up or water goes up is there a trend to the color change? I have noticed that in the srping when it is cool and wet every single semp I have in a particular area are red/maroon/mauve in color and in summer they turn more green. Would this be due to temp, the different soil moisture levels or something else?

I love watching the changes with my plants, but have no idea what environmental change results in what coloration change.