This Pennsylvania seed company offers a substantive catalog of heirloom vegetables (they approximately 1400 varieties) which they define as varieties that are about fifty years old. Their descriptions are terse but to the point and do include the botanic name of the vegetable. There is also a nice short statement on soil pH and general growing requirements for most of the vegetable varieties offered. As always, you have to know your own climate when ordering from a seed company that is outside your growing area. An heirloom tomato that might do well in Pennsylvania is unlikely to thrive in my coastal Northern California garden. Planting guides with reference to first frost dates are provided for gardeners who live where the winters are cold. Overall, a seed catalog well worth perusing and ordering from. The seed prices are exceedingly reasonable.