The D.C. Seed Exchange

Welcome to the D.C. Seed Exchange! We are a small seed bank focused on the highest quality genetics. Our mission is to build a virtual trading space that features genetics from the best breeders in North America as well as highlighting local talent from the Mid-Atlantic region. Below is a complete list of our vendors offering a variety of regular, feminized and auto-flowering seeds.

We are here to help, if you have any questions please don't hesitate to contact us!


SR-71 Purple Kush BX F5 12 Regular Seeds


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SR-71 Purple Kush BX F5 (SR-71 Clone x [SR-71 Clone x Instant Karma)

Also known as Purple Kush, SR-71 is a rare potent Indica strain that is a crossover between the Hindu Kush and Purple Afghani. It is potent and can leave you feeling stoned for hours. The SR-71 plant is short in height and has dense, dark green buds with purple hues. The flowering time for this plant is 7 – 8 weeks and the yield is impressive as well. The plant can grow well in a dry climate outdoors but can be grown indoors as well. The strain has an earthy and spicy aroma with a sweet grape aftertaste. The pungent strain can give you a long-lasting buzz. A few tokes will elevate your mood, making you crack with laughter and will leave you feeling lazy and sleepy. Smokers who puff on this strain in the evening or before bedtime will ease into a sound sleep and will wake up refreshed and relaxed. The funky sweetness of the strain will leave you craving for more.

The SR-71 was originally given away as an F2 freebie. Guammainian Gardens got them as F3 from Tobacco Valley and took them to F5. Guammainian found a beautiful trichrome, trifoliate father and gorgeous, very good-yielding, colorful mother. These babies should go 60-70 days depending on preference. Expect earthy, sweet Kush aromas, strong branching Christmas tree-shaped beauties, with rock-hard flowers.

12 REGULAR seeds per pack!


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