Speed Bump

Speed Bump from Common Wealth Seed Co pairs I95 from Top Dawg Genetics with Grape Sunshine, a line known here as a tropical hash dumper. It’s available as feminised seeds and is aimed at growers who like Chem-led flavour, resin interest and a plant with a noticeable stretch in flower.

The Grape Sunshine side has a tidy bit of backstory. It is Secret Lemon (Lemon Peel x Moonbow) x Tallymon, with Tallymon listed as (Banana OG x Dosidos) x Papaya. Before the Grape Sunshine name stuck, it was originally called Secret Lemon Tallymon. That parent brings the tropical, resin-focused side of the cross, while the I95 influence keeps the flavour profile heavy on the Chem lineage.

In the grow room, Speed Bump is listed as a medium-height variety, though Common Wealth Seed Co also notes a pretty substantial stretch. It’s one to allow some headroom for, rather than assuming it will stay squat. Flowering time is 8–10 weeks, with medium to high yield potential and suitability for indoor, outdoor or greenhouse growing.

The flowers are described as having strong bag appeal, with massive buds and sweet Chem notes. Resin is a clear part of the appeal too: the breeder highlights coloured resin and bulbous heads, fitting the Grape Sunshine reputation for hash-friendly output.

Speed Bump should suit customers who want a Chem-dominant profile with extra colour and resin from a more tropical parent line. The useful headline is simple: I95 structure and Chem character crossed into a detailed Grape Sunshine background, with an 8–10 week flowering window.