open to grow ready to bloom

cut flower seed kit

open to grow ready to bloom cut flower seed kit

Person holding a large bouquet of pink, red, and white snapdragons in front of a green and brown wooden background.
Person holding a large bouquet of vibrant pink and red flowers with yellow centers in front of a wooden background.
Person holding a bouquet of pink and peach-colored flowers
A hand holding a bunch of white flowers with yellow centers, outdoors on a grassy area with a sidewalk.
Colorful bouquet of pink, yellow, white, and purple flowers in a gray pot on green grass.

Grow Your Own Cut Flower Garden

Handpicked Seeds for Blooms You'll Love to Grow and Pick

Our Cut Flower Seed Kits make it easy for anyone — even total beginners —to grow a patch of colourful, tall-stemmed flowers perfect for picking. This kit includes five labelled packets of varieties that thrive in New Zealand's summer and suit any skill level:
Zinnias
Cosmos
Matricaria (Feverfew)
Celosia
Snapdragons

Pink box containing a flower seed kit with a colorful floral design and text that says 'Open to grow, ready to bloom, cut flower seed kit, a vibrant summer mix of easy to grow blooms'.
Set of five seed packets with plant names and images, including Zinnia, Matricaria, Celosia, Cosmos, and Snapdragon, arranged on decorative black-and-white floral wrapping paper.
Open gift box with white tissue paper and a card saying 'beyond grateful, thank you so much' placed on top of neatly wrapped gift.
Pink cardboard box with a red label containing information about summer blooming flowers, including Zinnias, Cosmos, Celosia, Matricaria, and Snapdragons, from Harvest Bloom Flower Farm, Hamilton. The label also features a logo with a flower and the

How to Grow – Simple Instructions

What You'll Need

🌿 Growing Containers
You don’t need fancy equipment to grow flowers! Use mini seed trays with domes from garden or hardware stores, or repurpose clean, shallow containers that allow water to drain. Recycled pots and plant trays work perfectly.

🪴 Seed Raising Mix & Vermiculite
Look for seed-raising mix at your local garden centre or hardware store. Vermiculite is optional, but it helps retain moisture and gives seeds a better start.

🖊 Labels
Label everything — it’s surprisingly easy to forget what’s what! Use plastic labels, wooden sticks, or cut up ice cream container lids to make your own.

🌼 When to Sow

Sow from late September to December for a vibrant summer garden.
In most parts of New Zealand, Labour Day (late October) is a good guide for planting out into the garden. All these varieties are frost tender, so wait until your last frost has passed before transplanting.

🌸 Starting Your Seeds

While some seeds can go directly in the ground, starting in containers gives you more control over moisture and temperature.

  1. Fill containers with seed-raising mix and moisten (not soaking).

  2. Press seeds into the surface:

    • Zinnia & Cosmos: lightly cover with a fine layer of soil.

    • Matricaria: leave uncovered — they need light to germinate.

    • Snapdragons & Celosia: lightly cover with vermiculite if available.

  3. Cover with a dome lid or cling film to create humidity.

  4. Place somewhere warm and bright — a sunny windowsill or sheltered porch is perfect.

  5. Water gently to keep the soil moist but not soggy. Use a spray bottle or bottom-water by placing your container in a shallow tray of water.

  6. Remove the cover once seedlings have emerged (usually 5–14 days).

🌱 Planting Out

Once seedlings are 5–8cm tall and have a few sets of true leaves:

  1. Prepare your garden bed with compost or use potting mix in raised beds.

  2. Harden off seedlings by placing them outdoors during the day for about a week.

  3. Plant in full sun, spacing about 20–30cm apart (closer than packet advice is usually fine for cut flowers).

  4. Water well and protect from slugs and snails — snail bait or wool pellets work well.

🌻 Plant Care

  • Water regularly, especially in dry spells.

  • Feed weekly with a liquid fertiliser (seaweed-based ones are great).

  • Pinch back stems when plants are 15–20cm tall to encourage branching and more flowers.

  • Pick often — the more you cut, the more blooms you’ll get!

  • Support taller varieties like snapdragons and cosmos with stakes or let them support each other by planting closely.

💐 Bloom Time

Expect flowers from Summer through to Autumn.

🌸 Still Have Questions?

I’d love to help you grow with confidence!

Follow along on Instagram and TikTok for seasonal tips, behind-the-scenes, and growing advice.
Got a question?
Send me a message or email — I’m always happy to help.

💌 rachel@harvestbloomflowers.co.nz
📩 Or just DM me anytime!

Let’s grow something beautiful together 🌿✨