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Penhill Watermelon
Penhill Watermelon is a true statement dahlia with massive, ruffled blooms in rich watermelon-pink tones. Known for its dramatic dinner plate size and vibrant colouring, this variety is a show-stopper in the garden and an absolute favourite for florists and event designers looking for bold, romantic blooms.
Key Features
Flower Size: Extra-large 25cm + dinner-plate blooms
Colour: Watermelon-pink with hints of coral and raspberry
Petals: Long, ruffled, and slightly twisted petals with a wild, dramatic form
Flowering Season: Mid-summer through to late autumn (Jan–May)
Use: Perfect for weddings, event work, and spectacular garden displays
Planting & Care (NZ Conditions)
Planting Time: September–November, once frost danger has passed
Light: Full sun for strong growth and best bloom size
Height: 100–140cm tall – staking is essential to support heavy flowers
Spacing: 45cm between plants
Soil: Rich, well-drained soil enriched with compost or organic matter
Watering: Keep consistently moist, but avoid waterlogging
Deadheading: Regularly remove spent blooms to keep flowers coming
Why You’ll Love It
Huge, vibrant blooms that create dramatic floral arrangements
A favourite for weddings and large statement bouquets
Reliable, high-impact variety with excellent vase life for its size
Tuber Quality
Each of our dahlia tubers is carefully hand-selected and inspected to meet our quality standards. We check for:
A healthy body
A strong neck
At least one visible eye ready to grow
Only when we’re confident it’s ready for your garden do we pack it up and send it on its way.
Please keep in mind that tubers naturally vary in size, shape, colour, and texture. Some may arrive looking a little small or slightly shrivelled — and that’s totally normal! As long as it has a good neck and an eye, it has everything it needs to grow beautifully. We only send tubers we’d be happy to plant ourselves.
Storage & Care
Once your tubers arrive, they’ll need a little care until it’s time to plant. Keep them in the box with the wood shavings in a cool, dry place until planting time. In New Zealand, this is usually around Labour Day weekend, once the risk of frost has passed — but conditions vary, so be sure to consider your local climate and soil.
Pest & Disease Notice
Our tubers come from healthy, disease-free beds and are divided with sanitised tools to keep them that way. While we do everything we can to ensure they’re in top shape when they leave us, we recommend planting them in pots for their first season so you can monitor them closely. Once they’re in your care, we can’t control outside factors like soil conditions or pests.
Upon Arrival
Please open your package as soon as it arrives and check everything over. If you have any concerns, contact us within 24 hours, including clear photos, so we can help. If something’s not quite right, we’ll do our best to replace the tuber or offer a refund if we don’t have a suitable replacement.
Because tubers are living things, we’re unable to accept returns or offer refunds due to change of mind. Once the tubers leave our hands, we can’t guarantee how they’re stored or whether they’ve been exposed to garden conditions that might affect their health.
A Note on Variety & Surprise
We take every care to ensure your tubers are correctly labelled - but because this is a hands-on, seasonal process, and this being our first unexpected season that we are selling to market, the occasional mix-up can happen. If this small risk isn’t something you’re comfortable with, we completely understand and kindly ask that you don’t proceed with your purchase. Please note because of this we are offering the tubers at a slightly discounted price for the first season so now is the time really to stock up on lots of beautiful new flower babies!
That said, we hope you’ll enjoy the journey.
Shipping
Please ensure you select the correct flat rate shipping option for your delivery destination. Incorrect postage and handling means we have to follow up which in turn means your delivery will be delayed.
Penhill Watermelon is a true statement dahlia with massive, ruffled blooms in rich watermelon-pink tones. Known for its dramatic dinner plate size and vibrant colouring, this variety is a show-stopper in the garden and an absolute favourite for florists and event designers looking for bold, romantic blooms.
Key Features
Flower Size: Extra-large 25cm + dinner-plate blooms
Colour: Watermelon-pink with hints of coral and raspberry
Petals: Long, ruffled, and slightly twisted petals with a wild, dramatic form
Flowering Season: Mid-summer through to late autumn (Jan–May)
Use: Perfect for weddings, event work, and spectacular garden displays
Planting & Care (NZ Conditions)
Planting Time: September–November, once frost danger has passed
Light: Full sun for strong growth and best bloom size
Height: 100–140cm tall – staking is essential to support heavy flowers
Spacing: 45cm between plants
Soil: Rich, well-drained soil enriched with compost or organic matter
Watering: Keep consistently moist, but avoid waterlogging
Deadheading: Regularly remove spent blooms to keep flowers coming
Why You’ll Love It
Huge, vibrant blooms that create dramatic floral arrangements
A favourite for weddings and large statement bouquets
Reliable, high-impact variety with excellent vase life for its size
Tuber Quality
Each of our dahlia tubers is carefully hand-selected and inspected to meet our quality standards. We check for:
A healthy body
A strong neck
At least one visible eye ready to grow
Only when we’re confident it’s ready for your garden do we pack it up and send it on its way.
Please keep in mind that tubers naturally vary in size, shape, colour, and texture. Some may arrive looking a little small or slightly shrivelled — and that’s totally normal! As long as it has a good neck and an eye, it has everything it needs to grow beautifully. We only send tubers we’d be happy to plant ourselves.
Storage & Care
Once your tubers arrive, they’ll need a little care until it’s time to plant. Keep them in the box with the wood shavings in a cool, dry place until planting time. In New Zealand, this is usually around Labour Day weekend, once the risk of frost has passed — but conditions vary, so be sure to consider your local climate and soil.
Pest & Disease Notice
Our tubers come from healthy, disease-free beds and are divided with sanitised tools to keep them that way. While we do everything we can to ensure they’re in top shape when they leave us, we recommend planting them in pots for their first season so you can monitor them closely. Once they’re in your care, we can’t control outside factors like soil conditions or pests.
Upon Arrival
Please open your package as soon as it arrives and check everything over. If you have any concerns, contact us within 24 hours, including clear photos, so we can help. If something’s not quite right, we’ll do our best to replace the tuber or offer a refund if we don’t have a suitable replacement.
Because tubers are living things, we’re unable to accept returns or offer refunds due to change of mind. Once the tubers leave our hands, we can’t guarantee how they’re stored or whether they’ve been exposed to garden conditions that might affect their health.
A Note on Variety & Surprise
We take every care to ensure your tubers are correctly labelled - but because this is a hands-on, seasonal process, and this being our first unexpected season that we are selling to market, the occasional mix-up can happen. If this small risk isn’t something you’re comfortable with, we completely understand and kindly ask that you don’t proceed with your purchase. Please note because of this we are offering the tubers at a slightly discounted price for the first season so now is the time really to stock up on lots of beautiful new flower babies!
That said, we hope you’ll enjoy the journey.
Shipping
Please ensure you select the correct flat rate shipping option for your delivery destination. Incorrect postage and handling means we have to follow up which in turn means your delivery will be delayed.