Founded in 2019 as a father and son collaborative. Grow up base their work on graphic art, typography, stencils, mixed media, screen print, fluorescent ink and potty mouthed high jinx. Jack Blam is now flying solo working on his own fine art projects. Blam senior is still refusing to grow up.
Blam’s graphic design has earned recognition at the highest level; his work is part of the V&A Museum’s 20th Century collection in London. He has also created and exhibited pieces for the Design Museum’s “50 Years of Helvetica” exhibition, a project he curated in collaboration with 50 artists.
A two colour silkscreen print by father-and-son duo Grow Up, with bold fluoro pink lettering hand-pulled over a halftone portrait of a wide-eyed tabby cat. The perfect gift to yourself, a cat-lover, or your loved one with a really nice… you know what. Signed and numbered by the artist.
Artist Grow Up
Artwork Size 35 × 35cm
Medium Silkscreen print with fluorescent pink ink
Paper Heavyweight cotton paper
Edition Limited edition, hand-printed, signed and numbered by the artists
Edition Size 25
Created exclusively for the Trainspotters #T30 exhibition Feb 2026. Available framed (UK shipping only).
Artist Grow up
Medium 2 colour screen print on vintage Edinburgh postcard.
Dimensions 13x18 cm (framed)
Year 2026
Exhibition Trainspotters #T30
Created exclusively for the Trainspotters #T30 exhibition Feb 2026. Available framed (UK shipping only).
Artist Grow up
Medium 2 colour screen print on 90s vintage Scottish £1 bank note
Dimensions 13x18 cm (framed)
Year 2026
Exhibition Trainspotters #T30
Created exclusively for the Trainspotters #T30 exhibition Feb 2026. Available framed (UK shipping only).
Artist Grow up
Medium 2 colour screen print on 90s vintage Scottish £1 bank note
Dimensions 13x18 cm (framed)
Year 2026
Exhibition Trainspotters #T30
Please note: as this is an original work, it will only be available for collection or shipment after the exhibition closes on 14 March 2026. You are welcome to place an order now; the work will be shipped once the show has ended.
Created exclusively for the Trainspotters #T30 exhibition Feb 2026. Available framed (UK shipping only).
Artist Grow up
Medium 2 colour screen print on 90s vintage Scottish £1 bank note
Dimensions 13x18 cm (framed)
Year 2026
Exhibition Trainspotters #T30


Part of Paste Present Future, the city-wide protest poster show curated by Grow Up to celebrate 35 years of The Big Issue. More than 35 artists were asked one question: what's your big issue?
Artist: Grow Up
Medium: 1 colour screenprint on 350gsm Pur Cotton
Dimensions: 42 x 59.4 cm (A2)
Edition: Limited edition of 100
Year: 2026