--- type: species common_name: "Cedar" scientific_name: "Cedrus deodara" difficulty_level: "intermediate" environment: "outdoor" hardiness_zones: [7, 8, 9, 10] url: "https://www.bonsailist.com/species/cedar" --- # Cedar Bonsai *Cedrus deodara* — Family: Pinaceae ## About Cedar Bonsai Deodar cedar bonsai carry the weight of the Himalayas in miniature. Cedrus deodara has drooping branch tips, soft blue-green needles arranged in rosettes, and a graceful silhouette that's distinctly different from juniper or pine. Where juniper looks wild and pine looks stoic, cedar looks elegant. There's a calmness to a well-developed cedar bonsai. Each needle cluster contains 20-30 individual needles arranged in a whorl, creating a texture that's softer and more approachable than the sharp individual needles of pine or spruce. It's a look that photographs beautifully and catches light in interesting ways. Cedars aren't as commonly grown as bonsai as juniper or pine, which is exactly why they stand out at shows and in collections. The trunk develops character slowly and the branch structure refines over years. Patience required. But the end result is a tree with a dignity that few species match. ## Care at a Glance | Aspect | Recommendation | | --- | --- | | Difficulty | intermediate | | Environment | outdoor | | Light | Full sun | | Water | Moderate, let dry slightly between waterings | | Soil | Well-draining, slightly acidic | | Temperature | Hardy to 0°F | | Humidity | Low to average | | Fertilizer | Every 3-4 weeks, spring-fall | | Repotting | Every 3-5 years | | Growth Rate | moderate | | Mature Height | 12-24 inches | | Pruning Season | Spring, late summer; structure in late winter | ### Light Cedars need full sun—6+ hours of direct sunlight daily. They grow naturally on exposed Himalayan slopes and mountain ridges. Partial shade produces open, sparse foliage and weak branching. This is a full-sun species without compromise. ### Water Water when the top half-inch of soil feels dry. Cedars prefer to dry slightly between waterings—they don't tolerate constantly wet soil. In summer, water every 1-2 days. In winter, water when the top half-inch is dry -- usually every 4-7 days -- and never when the soil is frozen. Good drainage is essential. If the needles yellow and drop, you're probably overwatering. ### Soil Use a mix of 60% inorganic (pumice, lava rock, akadama) and 40% organic (pine bark). Cedars need excellent drainage—they rot in heavy, wet soil. The roots need oxygen. A granular, fast-draining mix keeps them healthy. ### Temperature Deodar cedars handle cold well but aren't as cold-hardy as some conifers. Protect from sustained temperatures below 0°F. In zones 7-8, they're fine outdoors year-round with pot insulation in the coldest weeks. They handle heat well in zones 9-10 with adequate watering. ### Fertilizer Feed with balanced organic fertilizer every 3-4 weeks during the growing season. Cedars are moderate feeders—heavy fertilizing pushes leggy growth that looks coarse. Organic pellets that release slowly produce the best results. Reduce feeding in late summer to let growth harden. ### Repotting Repot in early spring before new growth starts. Cedars don't fill pots quickly and resent frequent disturbance. Be conservative with root pruning—remove no more than one-quarter of the root mass. Keep roots moist during the process. They recover slowly from aggressive root work. ## How to Care for Cedar Bonsai The trickiest thing about cedar bonsai is watering. They need moisture at the roots but hate sitting wet. Check the soil daily, water when the top feels dry to the touch, and make sure water drains through the pot quickly. If water pools on the surface for more than a few seconds, your soil mix is too dense. Swap it out. Here's what makes cedar watering tricky: the needles won't show drought stress until the damage is already serious. Don't wait for yellow needles to tell you something's wrong. Check the soil. Trust your finger, not your eyes. Full sun. No shortcuts. Cedars in partial shade develop thin, sparse canopies with stretched internodes. In full sun, needle rosettes stay tight, dense, and compact. Six or more hours of direct light daily. Cedars form mycorrhizal partnerships -- beneficial fungi that live on and around the roots. Use well-composted organic matter in your soil mix to encourage these fungi. And whatever you do, don't sterilize your soil with boiling water or bleach before potting. You'll kill the very organisms the tree depends on. Winter care? Insulate the pot in zones 7-8 to buffer freeze-thaw cycles. Beyond that, cedars hold their blue-green foliage through winter while everything deciduous goes bare. Gorgeous. ## Pruning Your Cedar Bonsai Pinch new candles in spring before they extend fully. Twist them off by hand -- don't use scissors. You want a natural break, not a clean cut that leaves a visible stub. Pinching keeps internodes short and pushes back-budding along the branch. Late summer is thinning time. Go through the needle rosettes on each branch and pull off old, elongated needles from the undersides and interiors. This directs energy toward the outer growth and prevents the interior from going bare and dying back. Structural pruning happens in late winter or early spring. Remove crossing branches, anything growing straight down, and branches that clutter your design. Critical rule: cedars don't back-bud reliably from bare old wood. If you strip all foliage from a branch, consider that branch dead. Always leave green. Large wounds heal slowly on cedar. Much slower than maple or elm. Use cut paste on any cut wider than a pencil. Plan heavy pruning carefully because gaps take years to fill. ## Styling Your Cedar Bonsai The fastest way to ruin a cedar bonsai is wiring the branch tips upward. The gentle droop at the end of every branch is the species -- it's what separates Cedrus from stiffer conifers and gives the tree its flowing, elegant presence. Set each branch's main line wherever the design needs it, then let the last few inches fall. Formal upright is the natural silhouette: straight trunk, tiered branches, conical outline, mirroring how deodars grow on open Himalayan slopes. Develop distinct foliage pads with visible trunk between tiers -- clear separation between layers is what makes the style work. Literati works surprisingly well too. A tall, slim trunk with sparse foliage near the apex captures a deodar clinging to a ridge. Strip the lower branches, keep the top canopy, and let the trunk movement tell the story. Wire during the growing season with dampened raffia under every coil -- cedar bark is thin and marks easily. Branches set in four to six months; check monthly. Match wire to branch at /tools/wire-gauge. ## Common Cedar Bonsai Problems Root rot is the number one killer. Period. Cedars in heavy, water-retentive soil slowly suffocate and rot at the roots. If the tree is yellowing overall and the soil smells sour, you're already in trouble. Pull it out, cut away any brown, mushy roots, repot in fast-draining 60/20/20 pumice/lava rock/akadama, and reduce your watering frequency. Some needle drop in fall is completely normal -- cedars shed older interior needles annually. But if the drop is heavy or affecting new growth, something's wrong. Check your watering and drainage. Sudden heavy needle loss almost always points to root trouble. And before removing any branch that's browned, thumbnail-scratch its bark: green underneath means live wood that may still push new rosettes; dry brown means cut back until you reach green. Giant conifer aphids -- dark, long-legged insects the size of a match head -- cluster along cedar branches in spring and summer. The giveaway is sticky honeydew on the needles below, which then grows black sooty mold. A hard water spray clears light infestations; the pest control guide (/guides/pest-control) has the full treatment ladder for anything worse. Scale insects show up occasionally as small brown or white bumps along stems -- not common on cedar, but persistent once established, so catch them early. Treatment steps are in the pest control guide. ## Where to Buy Garden centers carry Cedrus deodara in 1-5 gallon containers for $20-60. Look for compact specimens with low branching and some trunk movement. Avoid trees that have been pruned into symmetrical Christmas tree shapes -- those have had all the interesting low branches removed. You want character, not conformity. Online bonsai vendors stock cedar pre-bonsai sporadically for $60-200. The species isn't as commonly offered as juniper or pine, so check Evergreen Gardenworks and specialty conifer nurseries. Honestly, landscape nursery stock is often your best bet for finding thick-trunked material at reasonable prices. A $40 nursery cedar beats a $150 pre-bonsai with a skinny trunk. ## Compatible Bonsai Styles - [formal-upright](https://www.bonsailist.com/styles/formal-upright) - [informal-upright](https://www.bonsailist.com/styles/informal-upright) - [slanting](https://www.bonsailist.com/styles/slanting) - [literati](https://www.bonsailist.com/styles/literati) ## USDA Hardiness Zones [Zone 7](https://www.bonsailist.com/climate-zones/zone-7), [Zone 8](https://www.bonsailist.com/climate-zones/zone-8), [Zone 9](https://www.bonsailist.com/climate-zones/zone-9), [Zone 10](https://www.bonsailist.com/climate-zones/zone-10) Native to Himalayas (India, Pakistan, Afghanistan). ## Categories - [Outdoor](https://www.bonsailist.com/categories/outdoor) - [Conifer](https://www.bonsailist.com/categories/conifer) ## Frequently Asked Questions ### Are cedar bonsai good for beginners? They're intermediate. The main challenge is watering—cedars rot in wet soil but need consistent moisture. If you can nail the watering balance and provide full sun, they're otherwise straightforward. ### Can cedar bonsai grow indoors? No. Cedars need outdoor conditions with full sun and seasonal temperature changes. Indoor air is too dry and light levels are insufficient for healthy growth. ### How cold-hardy is Cedrus deodara? Hardy to about 0°F -- a zone 7 floor. In zones 7-8 they overwinter outdoors with pot insulation. Below zone 7 the species is a gamble even with protection; they're not in the same cold class as junipers or pines. ### Why are my cedar's needles turning yellow? Usually overwatering or poor drainage. Cedars need soil that dries slightly between waterings. Check your mix drains quickly and reduce watering frequency. Root rot shows as overall yellowing. ### How do I prune cedar bonsai? Pinch new candles by hand in spring—don't use scissors. Thin crowded needle rosettes in late summer. Do structural pruning in late winter. Always leave foliage on branches you want to keep. ### What makes cedar different from other conifer bonsai? The soft, blue-green needle rosettes and naturally drooping branch tips set cedars apart. They have a gentler, more flowing appearance than junipers or pines. The foliage texture is unique in the bonsai world. ### How fast do cedar bonsai develop? Moderately. Expect steady but unhurried growth. Trunk development takes years, and branch structure refines slowly. Cedar bonsai reward patience—the results are worth the wait. ### Are cedar bonsai toxic to pets? No confirmed toxicity -- true cedars (Cedrus) aren't on the ASPCA lists, and deodar cedar has no record of poisoning dogs or cats. That's a different plant from the 'cedar' mulch reactions you may have read about, which involve unrelated trees. Still sensible to keep pets from chewing any conifer. ## Related Species - [Black Pine Bonsai](https://www.bonsailist.com/species/black-pine) — *Pinus thunbergii* - [Hinoki Cypress Bonsai](https://www.bonsailist.com/species/hinoki-cypress) — *Chamaecyparis obtusa 'Nana'* - [Juniper Bonsai](https://www.bonsailist.com/species/juniper) — *Juniperus chinensis* - [Podocarpus Bonsai](https://www.bonsailist.com/species/podocarpus) — *Podocarpus macrophyllus* --- *Source: [BonsaiList](https://www.bonsailist.com/species/cedar)*