Where to buy Heirloom Asparagus 3 Year Roots. Buy the best online at Albert's Tomatoes. Heirloom Asparagus are all natural easy to plant and fast to grow. These Asparagus root plants are just waiting for your to be gardening them. Heirloom Asparagus make medium size sweet tender spears and plenty of them. Buy many Asparagus now and enjoy years of great harvest for years to come. Remember to feed them Albert's Plant Tea Food and they will reward you with easy gardening and grand harvests.