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Ranunculus Growing Guide

About

Introducing the Elegance line of Ranunculus.

 

Through years of dedicated research and interbreeding, Italian breeder Biancheri have bred flowers with many layers of large petals, in colours that are highly esteemed in the market.

 

These are robust plants, growing long, straight stems, and exceptional quality, making them suitable for various climatic conditions and growing techniques.

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From the chill of Southern Australia to the subtropical warmth of South East Queensland, these Ranunculus, bringing beauty to flower journey.

Image by Emma Renly

🌸 Plant Type

  • Cool-season flowering perennial grown as an annual for cut flower production

  • 📏 Height - 30–55 cm

  • 🌱 Spread - 20–25 cm

  • 🪴 Growing Support Req?

  • Generally not required in home gardens

  • Support is recommended in windy areas or high-density plantings, using flower support netting

  • ↔️ Spacing - 15–20 cm between plants

  • ✂️ Pinching - Not required

  • 📅 When to Plant

  • Autumn to early winter in most Australian regions (March–June)

  • ☀️ Sun Requirements

  • Full sun. Minimum 6 hours of direct sunlight daily for flowering

  • 🌾 Soil Preferences

  • Well-drained, fertile soil

  • Rich in organic matter

  • Preferred soil pH 6.0–7.0

  • 💧 Water Requirements

  • Moderate

  • Keep soil consistently moist during establishment and flowering

  • Avoid waterlogged conditions

  • ❄️ Frost Tolerance

  • They don't mind a light frost as long as the corm does not freeze, mulching can assist to protect the roots.

  • Protect young plants from severe frosts below approximately -3°C

  • ⏳ Days to Flower

  • Approximately 90–120 days from planting, depending on temperature and planting date. They will start blooming sooner in warmer areas and finish earlier than cooler climates.

  • 🌡️ Temperature Range

  • Ideal growing temperatures: 5–20°C

  • Best flower quality produced under cool conditions

  • Growth and flowering decline when temperatures consistently exceed 25°C

ranunculus cut flower pastel.jpg

Cut Flower Tips

✨ Best Harvest Stage

Harvest when buds are soft and showing colour, often called the "marshmallow stage"Outer petals should be beginning to unfurl but flowers not yet fully open

🏺 Vase Life

7–14 daysUp to 14+ days with proper hydration and post-harvest care

💐 Cut Flower Grower's Tip

Italian Ranunculus performs best when planted during the cooler months, allowing plants to establish strong root systems before flowering in late winter and spring. Plant deep. Don't be afraid to cover some of forming leaves to ensure the corm that is forming is well under the soil. Check them as they grow to ensure the soil hasn't dislodged exposing the corm. I find birds can often pull them out for fun. Fertilise regularly throughout the season

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