Giant St.John’s-wort
identification
description
Pyramidal St. John's Wort (Hypericum pyramidatum) , seeds by Marie-Victorin
Pyramidal St. John's Wort (Hypericum pyramidatum) is a vibrant perennial, ideal for brightening up gardens with its large lemon-yellow flowers measuring up to 5 cm in diameter. Very floriferous, it forms magnificent clumps with dense and generous foliage in rich soil, adding a bright and vibrant touch to beds and borders.
Spread : 0.5 to 1 meter
Plant height : 0.8 to 1.2 meters
Quantity per pack : over 1000 seeds
Companion plants : echinacea, rudbeckia, yarrow
Enemy plants : none known
Hardiness zone : 3
Exposure : sun, partial shade
Moisture : fresh, well-drained soil
Sowing Instructions : Mix seeds with an equal volume of moist sand or vermiculite. Place in a sealed plastic bag and refrigerate for 30 to 90 days (cold stratification). Then sow directly on the surface in the desired location as soon as the weather becomes mild. Seeds require light to germinate; do not cover with soil. Mixing with talc or sand can also help with uniform sowing.
Pyramidal St. John's Wort is a hardy, easy-to-grow, low-maintenance plant. It is perfect for sunny gardens, offering a vibrant flower show and a long bloom that livens up outdoor spaces.
