Buy RS3 Starbloom flower
The starbloom flower is a members-only item in RuneScape 3. It is harvested from starbloom flower plants grown in a flower patch, which requires level 100 Farming. Each plant gives up to 12 flowers when picked.
Starbloom flowers are the key material for starbloom equipment. First, spin the flowers into starbloom thread at a spinning wheel. This needs level 100 Spinning and gives 47 experience per flower. Then weave the thread into starbloom cloth at a loom. The cloth is used to craft starbloom gear. A full set of starbloom equipment upgraded to +5 takes 768 flowers in total.
These flowers have other uses too. You can feed them to animals on the player-owned farm that eat flowers. At level 17, they can be made into flowery mush at the farm trough. They can also be disassembled for materials, mostly organic parts, with no junk chance.
Buying starbloom flowers saves hours of high-level farming. Players who want to craft starbloom gear need hundreds of these flowers, so a ready supply makes the process much faster.