Planting Redwood Trees: Coastal Giant Growth in 3 Simple Steps

Planting redwood trees turns your yard into a living monument—towering, timeless, and impossible to ignore. 🌿 I planted mine last spring, and though they grow slow at first, the wait feels worth it when you see those first deep green needles unfurl.

These coastal giants thrive where summers are mild and winters stay damp, but the right soil and site prep make all the difference.

The secret to success starts with location: redwoods need 6+ hours of dappled sunlight daily and well-draining, acidic soil (think forest floor, not heavy clay). Most nurseries sell them as bare-root seedlings, so dig a hole twice as wide as the root ball but no deeper—settling too low invites rot.

Amend the native soil with compost for that rich, spongy texture they crave.

After planting, water deeply but infrequently—once a week for the first month, then taper off as roots establish. Mulch heavily with wood chips to mimic their natural habitat, keeping moisture locked in while blocking weeds.

Within 3-5 years, you’ll see steady growth, though true grandeur takes decades. Patience pays off in shade, privacy, and a backyard that feels like a redwood forest.

Common mistakes? Overwatering (they hate soggy feet) and planting too close to structures (they’ll outgrow everything). My neighbor’s tree now shades their patio—proof these giants reward long-term thinking. Ready to start your own? Let’s get those roots in the ground.

What you need

How to plant redwood trees for long-term coastal growth

Here’s the straightforward method I’ve used to establish healthy redwoods in coastal climates—no complicated steps, just proven results.

Redwoods thrive in partial shade to full sun with well-draining soil—they despise soggy roots. Pick a spot with at least 6 feet of vertical space (they’ll grow tall fast) and 8-10 feet between trees for mature spread. Coastal winds can stress young seedlings, so plant near a windbreak like a fence or shrubs if possible.

Test your soil’s drainage by digging a 12-inch deep hole and filling it with water. If it drains within 2-3 hours, your site is ready. Amend heavy clay with 3-4 inches of compost mixed into the top 12 inches of soil to improve aeration. Avoid planting in low spots where water pools after rain.

Dig a hole twice as wide as the root ball but no deeper—redwood roots are shallow and sensitive to being buried too deep. Gently remove the seedling from its container and loosen any circling roots with your fingers. This prevents girdling as the tree matures.

Place the seedling in the hole so the top of the root ball sits level with the ground—burying the stem too deep suffocates it. Backfill with native soil (not amended mix) and water deeply to eliminate air pockets. Press the soil lightly around the base with your hands to stabilize it, but don’t compact it.

Water deeply once a week for the first 6 months, soaking the soil to a 12-inch depth. Redwoods hate drought stress, but they also hate soggy feet—let the top 2 inches of soil dry out between waterings. Use a soaker hose or drip irrigation to avoid wetting the foliage, which can invite fungal diseases in humid coastal air.

Spread 3-4 inches of wood chips or bark mulch in a 3-foot diameter ring around the base, keeping it 6 inches away from the trunk. This mimics their natural forest floor and retains moisture while protecting roots from temperature swings. Replenish mulch annually—it breaks down fast in coastal climates.

Tips & tricks for planting redwood trees

A few simple strategies that'll help your coastal redwoods grow strong and healthy from day one.

Soil Drainage Test: That 2-3 hour drainage test in Step 1 is non-negotiable for redwoods. If water still pools after 3 hours, you'll need to improve drainage by adding more compost or creating a raised bed. I've seen redwoods fail in soggy soil within weeks—trust me, don't skip this step! The goal is to mimic their natural forest floor where water flows freely.

Root Ball Handling: When you remove your seedling in Step 2, be extra gentle with those circling roots. I use my fingers to carefully tease them apart—this prevents girdling that can strangle your tree as it grows. Think of it like untangling headphones: patience pays off. Also, make sure the root ball stays intact during the entire process to preserve those delicate root structures.

Mulch Placement: The 3-4 inches of mulch in Step 3 should form a donut shape around your tree, keeping it 6 inches away from the trunk. This prevents rot and pest issues at the base while still protecting roots. I like to use cedar mulch because it naturally repels insects while breaking down slowly. Just remember to refresh it annually—coastal winds and rain will wear it away faster than you think.

Watering Wisdom: That once-a-week watering for 6 months might seem like a lot, but redwoods need consistent moisture during their early years. I recommend watering in the morning so foliage has time to dry before evening humidity sets in. Use a moisture meter to check soil depth—aim for dampness at 12 inches down, not just at the surface. The top 2 inches drying out between waterings helps prevent fungal issues while still keeping roots hydrated.

Frequently asked questions

Got questions about planting redwood trees? You’re not alone—these majestic giants need extra care! Here are answers to the most common concerns to help you grow a thriving coastal redwood.

How deep should I plant a redwood tree sapling?

Plant the root collar (where the roots meet the trunk) just above ground level. Burying it too deep can suffocate the tree, while planting too shallow exposes roots to drying. Loosen soil around the base to encourage root spread—think of it like tucking a cozy blanket around its roots!

How long does it take for redwoods to grow?

Redwoods are patient giants! In ideal conditions, they grow 3–4 feet per year when young, but mature growth slows to 1–2 feet annually. Full height (200+ feet!) takes 500–1,000 years—so start small, but dream big!

Do redwoods need full sun or shade?

Young redwoods thrive in partial shade (40–60% sunlight), while mature trees tolerate full sun. Avoid harsh afternoon sun in hot climates—think of them as coastal divas who love misty, cool air. Mulch helps retain moisture!

Can I grow redwoods in containers?

Nope! Redwoods have massive root systems—they need deep, well-draining soil and space to stretch. Containers limit growth and risk root rot. If you’re set on a smaller option, consider coast live oak or dawn redwood (a dwarf cousin!).