White spots on rosemary leaves come from 7 causes. Run the wipe test first. Wipe a spot with a damp finger. Powder that brushes off points to powdery mildew. Dots that stay put point to pests, burn, or scorch. I…
Aphids on pittosporum cluster on soft new growth and along leaf-underside midribs, and they leave sticky honeydew that turns black with sooty mold. Check the cluster location, the honeydew, and the leaf underside before you spray anything. Those 3 signs…
Wood rot has no cure once decay is established. The 10 strategies below prevent decay and spot a hazard tree, starting with the pruning cut that closes fast and the wound dressing that does not. The signature is soft, spongy,…
Ramularia leaf spot on strawberries is mostly cosmetic. The 7 strategies below spot it, tell it from leaf scorch, and protect the patch, starting with the resistant variety that lowers the pressure before the season opens. The signature is a…
Yellow patch on a home lawn is usually not yellow patch. The 7 strategies below tell it from other yellow patches and keep it cosmetic, starting with the triage that separates a real case from the far more common causes.…
Exobasidium leaf gall is mostly cosmetic. The 7 ways below care for azaleas and camellias and keep galls in check, starting with the spring inspection that catches galls before they turn white. The signature is a thick, fleshy, swollen leaf…
Ergot is a poison, not a plant disease to treat. The 7 ways below spot the toxic black spurs and keep them out of food and feed, starting with the seed-head inspection that finds them. The signature is a black…
Maize dwarf mosaic virus has no cure. The 7 strategies below prevent it on sweet corn, starting with the resistant hybrid that stops the disease before it starts. The signature is a mosaic mottling on leaves, stunting, and poor ear…
Jakhya needs 90 to 120 days from sowing to dry seed, and the hardest part is believing the timeline. This is a plant that farmers in Uttarakhand treat as a weed, then deliberately grow between crops because those tiny black…
Most gardeners buy balloon flower for the buds. The blue balloons pop open into star-shaped flowers and the plant earns its place in the border. Few gardeners know the same plant grows a white taproot that Korean cooks call doraji,…
Name any palm in Australia from 5 clues together: frond shape, trunk, crownshaft, leaf detail, and fruit. One clue misleads. Five clues together name the palm. That is palm identification in Australia. A feather-fronded palm could be a Kentia, a…
Growing a rubber-producing tree from seed in a temperate garden sounds like a fantasy, yet Eucommia ulmoides makes it real. This is the only temperate-climate tree that produces rubber latex, and it survives winters down to USDA zone 4 according…
You cannot grow masoi bark at home. No nursery trade sells its plants, cuttings, or seeds, and no home-grow guide exists for the species. The tree behind the name is a Papuan rainforest tree above 30 meters, harvested wild for…
You cannot buy kayu rapet as a garden plant in the West. No nursery trade sells its plants, cuttings, or seeds, and no English grow guide exists for the species. The plant behind the name is an evergreen climbing shrub…
Fungal problems on palm start with 1 question: where is the symptom? The location narrows the fungus before anything else does. A spot on a leaflet points to a leaf spot fungus, while a rotting spear leaf points to bud…
Start with one question: where does the symptom sit? A nectarine tree with a problem answers that question first. That one question sorts 11 problems faster than a close-up photo does. A nectarine is Prunus persica var. nucipersica, a smooth-skinned…
Three levers decide how juicy a lemon gets: the variety, steady water while the fruit sizes, and harvest timing. Each lemon holds 10 to 13 juice-filled segments, and water decides how full those segments get. A lemon picked at full…
Buy a sucker from a flowering male tree, never a seedling of unknown sex. That is how to grow kewra from India the reliable way, because only the male tree gives you fragrance. The rest of this page is 20…
Why is my lemon tree not fruiting? Count 3 things before you touch the tree: flowers, set fruit, and fallen fruit. A lemon tree with no flowers has a different problem from a tree covered in flowers that never set…
3 groups hold every plant sold or known as jasmine in Australia. True jasmines belong to the genus Jasminum. Jasmine-named relatives carry the name with a different genus. Lookalikes share the scent or the white flowers with no jasmine in…
