In 2022 I painted anthracnose lesions on apples, strawberries and mango. The symptoms are caused by related fungi within the genus Colletotrichum. This is one of my very favourite plant disease paintings. www.hgpenningtonart....

In 2023 I painted maize lethal necrosis disease, caused by the simultaneous infection of viruses MCMoV and any of several Potyviridae. www.hgpenningtonart....

In 2024 I painted blossom end rot of tomato: a physiological problem caused by adverse growing conditions. hgpenningtonart.com/... plantxprt used my painting on Instagram for their blog post www.instagram.com/p/...

I drew quiet street at sunrise on Canson Mi-Teintes paper using Derwent Inktense pencils. I love the contrast between the warm morning light and the cool shadows of houses and snow. hgpenningtonart.com/... #CansonMiTeintes #DerwentInktense

This grapevine leaf is transitioning into autumn with a stunning mosaic of green and red.

In 2024 I painted bleeding canker of horse chestnut for the October illustration of the BSPP plant pathogens calendar bspp.org.uk/product/...

In 2023 I painted cucumber downy mildew, caused by the oomycete Pseudoperonospora cubensis. It looks like an aerial photograph of fields! www.hgpenningtonart....

In 2024 I painted a red sunflower from my garden. The end result was striking, if not quite what I intended.

I challenged myself to complete one drawing each day whilst on holiday in Japan in Nov/Dec 2024. 20/23 - A branched twig with berries hgpenningtonart.com/...

I grew a mystery giant beet on my allotment from volunteer seed. Banana for scale. The flesh is red/pink with pale stripes and tastes like a milder beetroot. Second photo shows it next to a normal beet - any ideas what variety this could be?

In 2022 I painted soybean sudden death syndrome (SDS) caused by soilborne fungus Fusarium virguliforme. www.hgpenningtonart....

In 2023 I painted Cannabis powdery mildew, caused by several fungi including Golovinomyces ambrosiae, Leveillula taurica and Podosphaera macularis. www.hgpenningtonart....

In 2024 I drew cutlery for my light and shadow series. The spoon technically contains a tiny self-portrait. N.B. You can find my other light and shadow drawings here: hgpenningtonart.co.u...

I illustrated a cluster of apple blossoms from my front garden, using a reference photograph taken last spring 🌸 hgpenningtonart.com/...

Nasturtium variety Alaska 🌸

In 2022 I painted knopper gall, caused by the Cynipid gall wasp Andricus quercuscalicis. www.hgpenningtonart....

In 2023 I painted Peronospora leaf spot of rhubarb, caused by the oomycete Peronospora jaapiana. www.hgpenningtonart....

In 2024 I drew wired earphones (in ear headphones) for my light and shadow series. N.B. You can find my other light and shadow drawings here: hgpenningtonart.co.u...

I challenged myself to complete one drawing each day whilst on holiday in Japan in Nov/Dec 2024. 19/23 - Chuo park in Kagoshima hgpenningtonart.com/...

Taro (Colocasia esculenta)

In 2022 I painted Pinyon pine needle rust (Coleosporium ribicola) on golden current (Ribes aureum). Original photo by @Disholcaspis forwarded to me by @pascal_frey www.hgpenningtonart....

In 2023 I painted Didymella leaf spot of rhubarb, caused by the fungus Didymella rhei. www.hgpenningtonart....

In 2024 I drew a wrist watch for my light and shadow series. N.B. You can find my other light and shadow drawings here: hgpenningtonart.co.u...

I painted Prunus necrotic ringspot virus (PNRSV) on rose. It’s not possible to tell most ringspot viruses apart based on symptoms alone. Other circumstantial evidence, including infection on nearby plum trees, made it likely that PNRSV was the cause. hgpenningtonart.com/...

In 2023 I painted Ramularia leaf spot of rhubarb, caused by the fungus Ramularia rhei. www.hgpenningtonart....

In 2022 I painted oomycete Albugo infection on a wild brassica. The original, excellent, photograph was by @Llewelyn68. www.hgpenningtonart....

In 2024 I drew coins for my light and shadow series. hgpenningtonart.co.u...

In 2024 I painted pear rust symptoms, caused by the fungus Gymnosporangium sabinae, for the August illustration of the BSPP plant pathogens calendar. www.bspp.org.uk/prod...

I challenged myself to complete one drawing each day whilst on holiday in Japan in Nov/Dec 2024. 18/23 - the view from the Sakurajima ferry, including the Sakurajima volcano and the aquarium

Chilli plants have beautiful, delicate flowers

In 2022 I painted a nematode, stained with acid fuchsin, in a root. www.hgpenningtonart....

In 2023 I painted box blight, caused by two closely related fungi Calonectria pseudonaviculata and C. henricotae. www.hgpenningtonart....

In 2024 I drew a tortoise for my light and shadow series. hgpenningtonart.co.u...

I challenged myself to complete one drawing each day whilst on holiday in Japan in Nov/Dec 2024. 17/23 - buildings overlooking a river (Kagoshima). In the drawing, I initially made a mistake with the far river bank. I fixed it by deepening the shadows. hgpenningtonart.co.u...

Beautiful ringspot virus symptoms at my parents' place: 🌹 Rose: chlorotic rings on leaves + pale flecks on petals 🍑 Plum: pale circles, leaf distortion, misshapen fruit Likely culprit: Prunus necrotic ringspot virus (PNRSV).

In 2023 I painted Pierce’s disease of grape, caused by the bacterium Xylella fastidiosa. www.hgpenningtonart....

In 2022 I painted southern blight of tomato, caused by the fungus Athelia rolfsii (Sclerotium rolfsii). Original photograph by @alabamaED x.com/plantpathgrads... www.hgpenningtonart....

Will I ever stop making carryover errors (a type of typo)? Probably not.

In 2024 I drew my eye for my light and shadow series. hgpenningtonart.co.u...

I challenged myself to complete one drawing each day whilst on holiday in Japan in Nov/Dec 2024. 15/23 - heron. hgpenningtonart.co.u...

Solanum tuberosum var. Blue Danube. Stunning purple flowers.

In 2023 I painted northern corn leaf blight, caused by the fungus Setosphaeria turcica (anamorph Exserohilum turcicum; synonym Helminthosporium turcicum). www.hgpenningtonart....

In 2022 I painted soybean cyst nematode (Heterodera glycines) infection symptoms. www.hgpenningtonart....

In 2024 I painted a short-haired tortoise shell coloured cat, named Tia, sitting on a windowsill. You can see how my light and shadow drawing practice is helping my other paintings look more 3D! hgpenningtonart.com/...

I illustrated ivy-leaved toadflax (Cymbalaria muralis) in colored pencil - a delicate wall-climber with violet flowers and ivy-shaped leaves. View the artwork: hgpenningtonart.com/...

I gave my Kleinia neriifolia (syn. Senecio kleinia) houseplants a rather severe haircut, as they had hit the living room ceiling! The good news is that the cuts have callused over, and new shoots are forming beautifully. 🌱

I really like this painting. It's hard to define why, but it's one of my favourites. In 2023 I painted sour rot of grapes, a disease complex with multiple causal organisms including yeast, bacteria and fruit flies. www.hgpenningtonart....

In 2023 I painted cherry blossom wilt, caused by the fungus Monilinia laxa or M. fructigena. www.hgpenningtonart....

In 2024 I drew a Carcassonne (board game) board for my light and shadow series. hgpenningtonart.co.u...

I drew a cartoon about smut - the fungal kind. I created it for the @plantpathgrads Art in Phytopathology competition. This is the funniest I will ever be. I have peaked For details and an explanation, see: hgpenningtonart.com/...