It’s a great idea to include in your garden something that is expensive to buy but easy to grow. An example is Saffron which you can buy online as corms. Just plant the corms according to the instructions on the packet and within about four months the corms will be sprouting above the ground and blooming with a beautiful mauve tinted flower with the treasured red stamens. Just snip the three stamens and dry them carefully. I dry them in a paper bag placed on top of the hot water cylinder for a few days. mark the position of the corms in your garden with a decorative label so you don’t forget where they are when the leaves die down. Each corm multiplies so you will be rewarded with “daughter” corms each year. Wonderful!