@hgpennington
Plant pathogen paintings & photos
- In 2023 I painted soybean rust, caused by the fungi Phakopsora pachyrhizi or Phakopsora meibomiae. www.hgpenningtonart....
- In 2022 I painted horse chestnut leaf miner (Cameraria ohridella). www.hgpenningtonart....
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Komainu hgpenningtonart.com/...
- I painted Camellia yellow mottle virus symptoms for the February illustration of the BSPP 2024 plant pathogens calendar. bspp.org.uk/product/... hgpenningtonart.com/...
- Illustration of Ditylenchus dipsaci on onion, showing foliar distortion and bulb damage in cross-section. This is the first of twelve nematode illustrations planned for 2026, a little later than intended. See more plant pathology illustrations: hgpenningtonart.com/...
- I passed my JLPT N5 (Japanese Language Proficiency Test level N5)! 🎉It was close, but I made it!!!
- Lovely lichen
- In 2023 I painted frogeye leaf spot disease of soybean, caused by the fungus Cercospora sojina. www.hgpenningtonart....
- In 2022 I painted a false flower, formed due to the parasitic fungus Puccinia monoica parasitizing mustard. hgpenningtonart.co.u...
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Giant bamboo hgpenningtonart.com/...
- I drew a colored pencil illustration of St. John’s Wort (Hypericum calycinum), focusing on the leaves’ veining and the shape of the yellow flowers 🪷 hgpenningtonart.com/...
- In 2022 I painted corn smut, caused by the fungus Ustilago maydis. hgpenningtonart.co.u...
- In 2023 I painted sugarcane whip smut, caused by the fungus Sporisorium scitamineum (synonym Ustilago scitaminea). hgpenningtonart.co.u...
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Snacks! hgpenningtonart.com/...
- I drew a sunrise, based on a photograph taken by my niece on her way to school hgpenningtonart.com/...
- Lichen on the bark of a black locust tree (Robinia pseudoacacia)
- In 2022 I painted corn smut, caused by the fungus Ustilago maydis. hgpenningtonart.co.u...
- In 2023 I illustrated two related diseases: early leaf spot of peanut, caused by the fungus Cercospora arachidicola and late lead spot of peanut, caused by the fungus Cercospora personata (synonym Phaeoisariopsis personata). hgpenningtonart.co.u...
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Kiyomizu-dera Temple Niōmon (gate) hgpenningtonart.com/...
- I drew a foxglove alongside the chemical structure of digitoxin - a cardiac glycoside derived from this plant. This was a Christmas gift for a friend 🙂 hgpenningtonart.com/...
- In 2025 I illustrated Mucor, showing its erect hyphal sporangiophores topped with swollen, globose sporangia. hgpenningtonart.com/... The piece won the “On-the-outside” category of the American Phytopathological Society’s 2025 Art in Plant Pathology contest
- In 2022 I painted Blumeria graminis f.sp. hordei colony on the surface of a barley leaf. hgpenningtonart.co.u...
- In 2023 I painted Cotton angular leaf spot, caused by the bacterium Xanthomonas citri p.v. malvacearum hgpenningtonart.co.u...
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Torii at Meiji-jingu hgpenningtonart.com/...
- Reposted by @hgpenningtonFirst watercolor painting of the year 😭 I didn't expect it to come out so good... Tutorial I followed in the comments 🕺 [ #watercolor #scenerypainting #landscapepainting ]
- I drew a waterway framed by vibrant green foliage, focusing on the reflections in the water. Made with Derwent Inktense pencils (Bright Blue 1000, Mallard Green 1230, Apple Green 1400, Tan 1720, Antique White 2300) on pale yellow Canson Mi-Teintes paper. hgpenningtonart.com/...
- Happy New Year! In 2025 my website had 2,586 visits 🌍 The top 5 were from the USA (580), India (572), UK (247), Germany (126) and Philippines (107). Still amazing numbers for a hobbyist’s art page 😊 hgpenningtonart.com/...
- I'm feeling rather called out by one of my Christmas presents...
- In 2024 I painted Hellebore leaf spot symptoms, caused by Microsphaeropsis hellebori, for the January illustration of the BSPP plant pathogens calendar. www.bspp.org.uk/prod... hgpenningtonart.com/...
- In 2023 I painted Cristulariella leaf spot on chestnut oak, caused by the fungus Cristulariella depraedans. Original photo by @UTPlantDoc, who thanked “Tom Kesling in GA for the specimens…” www.hgpenningtonart....
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. Cherry tree outline hgpenningtonart.com/...
- I drew the Sakurajima Ferry Terminal, using a photograph taken from the ferry. I used a limited pallet of Derwent Inktense pencils (0230, 1730, 0900, with the accidental inclusion of 1210 when I forgot I was using 0900) on cream Mi-Teintes paper. hgpenningtonart.com/...
- In 2022 I painted poinsettia (Euphorbia pulcherrima) infected with poinsettia branch-inducing phytoplasma. www.hgpenningtonart....
- In 2023 painted European mistletoe on apple. The lack of berries indicates that either this is a male plant, or that it is the wrong season for berries. www.hgpenningtonart....
- In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan. peach blossom hgpenningtonart.com/...
- My Christmas plant disease illustration this year features Phytophthora ilicis, the oomycete responsible for holly leaf blight. 🎄🌿 hgpenningtonart.com/...
- Cat!
- In 2022 I painted Yam Mosaic Virus (YMV) symptoms on true yam (Dioscorea). www.hgpenningtonart....
- In 2023 I painted Cristulariella leaf spot, or bull’s eye spot, caused by the fungus Cristulariella depraedans. www.hgpenningtonart....
- In 2024 I did a watercolour painting of a tomato flower stem, featuring six green immature fruits of varying sizes, two yellow flowers, and four flower buds. www.hgpenningtonart....
- I drew a rose over three days using coloured pencils. From left to right: Day 1 Cherry 0510 and Iron Green 1310 Derwent Inktense Day 2 Cherry 0510 Derwent Inktense and a Yellow 916 Karisma Day 3 Dark Red 225 Faber-Castell Polychromos hgpenningtonart.com/...
- I like the way close-up images of drawings reveal the texture of the paper catching individual flecks of pigment. Instead of smooth colour or hard outlines, you can see the varying density of coloured speckles.
- In 2022 I painted tomato early blight, caused by the fungal pathogen Alternaria solani. This is one of my favourite plant disease paintings. The composition & colours really worked! www.hgpenningtonart....
- In 2023 I painted European mistletoe on apple. www.hgpenningtonart....
- In 2024 I did an acrylic painting of a beautiful purple flower on my Hibiscus syriacus, from earlier this year. hgpenningtonart.com/...
- I drew a sunset on Sakurajima using Derwent Inktense pencils on Canson Mi-Teintes paper. In the photo, there’s a tiny couple having wedding pictures taken by the bay. I asked ChatGPT to write step-by-step drawing instructions. You can see more here: hgpenningtonart.com/...
- I ordered a pair of finger limes, and wasn't expecting them to be quite this tiny!
