I'll try to answer some of the questions. 1. To reduce disease rate for herbs and allotments use super compost. make it from pineapples which you can buy from a trader shop on Catherby pierce (easiest way) or collect on Karamja. When using super compost only 10-20% of your herbs will die. Also if you can do My Arms big adventure quest, you get access to a herb patch where herbs never gets diseased. 2. Try to buy acorns in the Seers bank. Offer 2-5 K per acorn. 3. If you can, do the quests for Miscellania Kingdom management. There you can ask your workers to collect maples and you will receive bird nests with tree seeds as bonuses. It is the cheapest easiest way to get all kinds of tree seeds. 4. Best way to get herb seeds is to steal them from Master Farmer in Draynor. There is no shop which would sell them... You also get herb seeds as drops from monsters. Monsters known for dropping seeds are: Moss Giants, Dagonnath, Trolls, Ogres. Hope it helps.