thinking towards autumn

it's the twenty-fifth of june and no one has touched the biology club bed...so i took the liberty of cleaing it, turning in some compost, and putting in a planting of sugar snap peas, kohlrabi, and brussels sprouts for fall harvest...i purchased the kohlrabi seed ( fifth photo ) from seed savers' exchange and the brussesl sprout seeds ( sixth photo ) i saved from my garden last season...they look remarkably similar because kohlrabi and brussels sprouts are closely related ( the taxonomy for brussels sprouts is brassica oleracea and kohlrabi's is brassica oleracea gongylodes ...very close kin )...while i was clearing the bed i ran across a very thorny plant with blooms that look a great deal like potato blossoms...i haven't a clue what this is....but i have put out queries to more knowledgeable folks...an answer may be forthcoming...if i find out there will be a communication.