Herbarium Vivum Plant Specimen Archive · Linnaean Taxonomy
The Card Catalogue · Sheet 6

Specimens on File

How to Combine Sedges with Garden Perennials
No. 3426 Other

Astilbe flavescens

How to Combine Sedges with Garden Perennials · Sedges have seriously been having a moment these past few years. Articles in The Washington Post (2017), Horticulture…

Iridaceae California bor.
'Snow Love' Hellebore Has Long-Lasting Flowers That Shift from White to Green
No. 9078 Flowers

Tiarella glabra

'Snow Love' Hellebore Has Long-Lasting Flowers That Shift from White to Green · 'Snow Love' hellebore gives you these gorgeous, long-lasting flowers that shift from white to green, all hovering above…

Caprifoliaceae Formosa
'Miss Piggy' Pigsqueak Is an Early-Blooming Perennial for Sun or Shade
No. 8985 Perennials

Penstemon orientalis

'Miss Piggy' Pigsqueak Is an Early-Blooming Perennial for Sun or Shade · 'Miss Piggy' is a compact, neat little pigsqueak — or bergenia, if you prefer the fancy name — that lights up the…

Hydrangeaceae Virginia occ.
Snowdrops: The Late-Winter Bulb with a Following Called Galanthophiles
No. 9033 Other

Echinacea japonica

Snowdrops: The Late-Winter Bulb with a Following Called Galanthophiles · One of the first reassuring signs that green, flowering life is actually coming back after the depths of winter? Those…

Magnoliaceae California bor.
Pearls of Perfume Mock Orange Offers Lengthy and Fragrant Bloom
No. 1528 Other

Allium japonica

Pearls of Perfume Mock Orange Offers Lengthy and Fragrant Bloom · Pearls of Perfume is a hybrid mock orange (Philadelphus) that just keeps blooming from spring right through fall, with…

Caprifoliaceae Virginia occ.
What's the Best Size Perennial Plant to Buy?
No. 3285 Perennials

Paeonia minor

What's the Best Size Perennial Plant to Buy? · Most garden centers usually stock one or two sizes of any given perennial — typically quarts and gallons. Mail-order…

Lamiaceae Pennsylvania
Growing Eastern Arborvitae, Plus Exciting New Varieties
No. 1890 Other

Pieris lutea

Growing Eastern Arborvitae, Plus Exciting New Varieties · Eastern arborvitae, or Thuja occidentalis, are garden favorites for good reason — those evergreen leaves bring color…

Fagaceae Virginia occ.
The 2025 Perennial Plant of the Year: Clustered Mountain Mint
No. 1379 Perennials

Allium viridis

The 2025 Perennial Plant of the Year: Clustered Mountain Mint · Every year, the Perennial Plant Association — a group of plant and garden pros — votes one species or cultivar as…

Asteraceae Virginia occ.
The 2025 Hosta of the Year: Skywriter
No. 9744 Other

Allium glabra

The 2025 Hosta of the Year: Skywriter · The American Hosta Growers Association (AHGA) is a group of pros who specialize in hostas. Their ranks include…

Asteraceae Formosa
Did you know?
Conifer

Callicarpa purpurea

You'll want to grow 'Blue Ball' Korean pine (Pinus koraiensis 'Blue Ball') for those stunning blue-green needles that trace its loosely globe-shaped form. This is a dwarf conifer…

No. 8765 · Caucasus · 5 min read
Weeping White Spruce Brings Bold Winter Interest to Small Garden Spaces
No. 2527 Brings

Magnolia sylvestris

Weeping White Spruce Brings Bold Winter Interest to Small Garden Spaces · With those gorgeous silver-blue needles, cascading branches, and a slim silhouette, weeping white spruce (Picea glauca…

Caprifoliaceae Yunnan, Sina
LittleOne Blue Holly Fits Foundation Plantings
No. 1018 Other

Syringa purpurea

LittleOne Blue Holly Fits Foundation Plantings · While other female blue hollies (Ilex x meserveae) can get pretty big, the truly dwarf cultivar LittleOne maxes out at…

Cupressaceae Formosa