A hollowed log is a planter the forest already made. No pottery wheel required. There’s something deeply satisfying about tucking succulents into a horizontal log or watching flowers cascade from a stump: the vessel and the planting speak the same language. These are the planters that make visitors stop and ask how.
This guide covers the three classic forms: the hollowed horizontal log, the upright stump planter, and the tiered log garden. You’ll learn to select logs that hollow easily, cut drainage that actually drains, and choose plantings suited to shallow, fast-drying soil, plus the rot-slowing tricks that buy your planters extra years.
Planting in the Forest’s Vessels
A hollowed log is nature’s planter — the vessel the forest already made. Log planters bring the woodland into the garden: succulents in a horizontal log, flowers cascading from a stump, herbs in a tiered log tower. This guide plants in wood.
1. The Hollowed Log: The Classic Planter
Selection: 12–20″ diameter log, 3–5 ft long (already rotting is ideal — the punky center hollows easily; sound logs need chainsaw work). Hollowing: chainsaw plunge cuts + chisel (score the outline, remove the center in chunks; or the fire method — burn out the center, the traditional dugout; or the rot method — let nature hollow it, 1–2 years; the patient). Depth: hollow to 4–6″ walls (the vessel — thick enough for structure, thin enough for planting depth). Drainage: drill 1/2″ holes every 12″ along the bottom (the essential — waterlogged log planters rot from the inside; the holes + gravel layer). Bark: keep it (the bark is the beauty — the planter’s exterior; seal the interior with linseed oil).
2. Stump Planters: The Vertical Vessel
Selection: 18–30″ diameter stump (the bigger, the better — the planting surface; already in the ground is fine — plant where it stands). Hollowing: chainsaw + chisel (hollow 8–12″ deep — the bowl; or drill and plant — drill 2–3″ holes, drop in succulents; the instant). Soil: fill with potting mix (the hollow + soil = the planter; the stump is the pot). Planting: succulents and cascading (hens-and-chicks, sedum, trailing lobelia — the spill; the stump’s top is the stage). Lifespan: the stump rots gracefully (5–10 years — the planter becomes the nurse log; the cycle).
3. Log Slices and Rounds: The Shallow Planters
Thick cookies: 4–6″ thick, 12″+ diameter (hollow the center 2–3″ deep — the shallow bowl; perfect for succulents). Cluster: varied heights (3–5 cookies at different heights — the succulent colony; the tabletop garden). Wall planters: half-rounds mounted (the vertical — cookie halves as wall pockets; the living wall, rustic). Drainage: the shallow challenge (minimal soil = fast drying — water more often; the succulent advantage — they prefer it).
4. Tiered Log Gardens: The Tower
The concept: stacked logs creating planting tiers (3–4 logs stepped back — the hillside in miniature; each tier planted). Build: largest log at the base, progressively smaller (pinned with rebar — the stability; soil packed behind each tier). Planting: cascading down (trailing plants on the top tier spilling over — the waterfall; upright in the middle; groundcover at the base). Herb tower: the culinary (basil, thyme, oregano in the tiers — the kitchen garden, vertical; the small-space herb solution). Strawberry tower: the classic (the tiered strawberry bed — berries cascade; the productive tower).
5. What to Plant: The Log Palette
Succulents: the #1 (hens-and-chicks, sedum, echeveria — the shallow roots, the drought tolerance; the log planter’s natural partners). Cascading: the spill (trailing lobelia, bacopa, sweet potato vine — the waterfall over the log’s edge). Herbs: the useful (thyme, oregano, chives — the shallow-rooted; the kitchen log). Annuals: the color (impatiens in shade logs, petunias in sun — the seasonal pop). Ferns and moss: the woodland (in shade logs — the natural; the log becomes the forest floor). Soil: fast-draining mix (cactus mix for succulents — the drainage; log planters dry fast by design).
6. Placement and Composition: The Garden Context
Groups: odd numbers (3 or 5 log planters — the naturalistic cluster; vary the sizes). Levels: ground + elevated (some on the ground, some on stumps — the varied heights; the composition). Settings: near the house (the entry — the welcoming; by the patio — the viewed; in the rock garden — the woodland accent). Companions: boulders and ferns (the log + stone + fern trio — the woodland vignette; the complete composition). Seasonal: rotate annuals (the spring/summer/fall change — the log planter’s wardrobe).
7. Longevity: The Rotting Planter
The truth: log planters rot (3–8 years depending on species and drainage — the honest lifespan). Extend: linseed oil interior (yearly — the interior seal; gravel drainage layer; elevate off the soil — the 2″ air gap). Species: cedar and black locust last longest (the rot-resistant — 8+ years; pine gives 3–5). The succession: plan the replacement (when the planter softens, it becomes the nurse log — plant the next log planter nearby; the perpetual cycle; the rotting planter is the feature, not the failure).
Final Considerations
Hollow the log (or let rot do it), drill the drainage, fill with fast-draining soil, plant succulents and trailers, cluster in odd numbers with stone and fern companions, oil the interior yearly, and embrace the rot as succession. The log planter is the garden’s most poetic container — the forest’s vessel, holding the garden’s flowers, slowly returning to the forest floor.