biennial flower seeds The Biennial Seed Box | 8 Packets of Heritage Flowers

In the rush for instant gratification with annuals, it's easy to overlook the plants that truly define the cottage garden: biennials. These are the flowers that fill the "June Gap" — the lull between the last tulips of spring and the first roses of summer — with scent and height exactly when the garden needs it most.

Sown in the warmth of June or July, biennials establish strong roots and leafy rosettes before winter, then explode into majestic bloom early the following year. From the dramatic near-black spires of Hollyhock 'Nigra' to the evening perfume of Sweet Rocket, this box contains eight essential ingredients for a timeless cottage garden display.

Understanding Biennials

Year 1 (June–July sowing): The plant focuses entirely on building a strong root system and rosette of leaves — no flowers this year. Year 2 (spring–summer): It re-emerges from winter, sends up tall flower spikes, blooms spectacularly, sets seed, and completes its cycle.

Most plants in this box are prolific self-seeders — establish them once and they return year after year for free.

The Summer Sowing Method

Sow in June or July in a nursery bed or pots outdoors — no special equipment needed. Keep watered through the summer heat. In September or October, move young plants to their final flowering positions, such as into the beds where tulips are planted, and let them settle in before winter. Full instructions are printed on every packet.

Arrives in signature eco-friendly packaging — a thoughtful gift for the gardener who likes to plan ahead.