· Plant of the month · April 2026 · Pacific Iris
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— Plant library · 142 species, growing

The plants we plant, with their vital signs.

Every plant we use in the gardens we design — listed with bloom time, mature size, water needs, and which Wren-style gardens they show up in. We update it each season as the gardens mature.

— Plant of the month · April 2026

Pacific Iris

Iris tenax · Pacific Coast iris hybrid

A native Oregon iris that wants exactly what most yards refuse to give: dry summer shade, well-drained soil, and the patience to be left alone. In return, it offers ten weeks of pale lilac and butter-yellow flowers from late March through June.

This year we're planting Iris tenax in three Wren-style gardens as a low-maintenance border alternative to the more familiar bearded iris. It pairs unreasonably well with western sword fern, and the foliage stays green into November.

Mature size 14–18" tall · clumping
Bloom Late March – June
Light Part-shade preferred
Water Dry summer dormancy
Hardy to USDA zone 7
Native range NW Oregon coast
Plant it in your garden →
All plants Pollinator Native PNW Edible Shade Full sun Spring bloom Fall bloom Evergreen

Pacific Iris

Iris tenax

Native Oregon iris, ten weeks of bloom, dry-summer-tolerant. Pairs with sword fern.

NativePollinatorSpring bloom
Bloom Mar–Jun
Light Part-shade
Size 14–18"
Water Dry summer

Goldenrod

Solidago canadensis

Late-summer pollinator powerhouse. Three-season interest with seedheads holding into winter.

PollinatorNativeFall bloom
Bloom Aug–Oct
Light Full sun
Size 3–4 ft
Water Average

Western Sword Fern

Polystichum munitum

The PNW shade-garden default. Evergreen, structural, two-foot fronds in maturity.

NativeShadeEvergreen
Bloom
Light Shade
Size 3 ft
Water Avg

Camas

Camassia leichtlinii

Native bulb that turns spring meadows pale-blue. Naturalises gently. Pollinator favourite.

NativePollinatorSpring bloom
Bloom Apr–Jun
Light Full sun
Size 2 ft
Water Spring moisture

Oregon Grape

Mahonia aquifolium

State flower. Evergreen, holly-like leaves, yellow late-winter bloom, blue summer berries.

NativeEvergreenWildlife
Bloom Feb–Apr
Light Part-shade
Size 4–6 ft
Water Drought-tolerant

Tufted Hairgrass

Deschampsia cespitosa

Northwest native bunchgrass. Soft summer flower-heads catch every angle of light.

NativeGrassSummer interest
Bloom Jun–Aug
Light Full sun
Size 2–3 ft
Water Avg

Yarrow

Achillea millefolium

Drought-proof, butterfly-magnet, ferny foliage, flat flower-heads in cream or terracotta.

PollinatorDrought-tolerantSummer bloom
Bloom Jun–Sep
Light Full sun
Size 2 ft
Water Low

Vine Maple

Acer circinatum

Native multi-stem maple. Lacy spring leaves, fire-orange fall colour, sculptural in winter.

NativeTreeFall colour
Tree Multi-stem
Light Part-shade
Size 15–20 ft
Water Avg

Red Flowering Currant

Ribes sanguineum

Hummingbird beacon in early spring. Pink dripping racemes against bare wood.

NativePollinatorSpring bloom
Bloom Mar–May
Light Sun–part
Size 6–8 ft
Water Avg
— Bloom calendar · 2026

What's doing what across the year.

Plant
J
F
M
A
M
J
J
A
S
O
N
D
Oregon Grape Mahonia aquifolium
Red Flowering Currant Ribes sanguineum
Pacific Iris Iris tenax
Camas Camassia leichtlinii
Tufted Hairgrass Deschampsia cespitosa
Yarrow Achillea millefolium
Showy Milkweed Asclepias speciosa
Goldenrod Solidago canadensis
— Plant of the month, in your inbox

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The first of the month, we send a thousand-word note about one plant we're paying attention to — what it's doing, where it likes to live, what to plant it with. Started in 2017. Sent every month since.

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