Iris Bulbs
Iris bulbs produce delightfully dainty flowers in early to mid‑spring, making them a long‑standing favourite among gardeners. Compact, colourful, and full of character, iris bulbs are perfect for planting in borders, where their vibrant blooms can be fully appreciated. They also thrive in pots and containers, bringing early colour to patios and doorways.
Popular varieties such as Harmony Dwarf Iris bulbs offer rich blue tones, while classic Iris reticulata provide a striking mix of purples, blues, and yellows. Explore our full range of iris bulbs, including mixed selections.
Like everything we supply here at Boston Seeds, we pride ourselves on supplying professional quality - and for flower bulbs, that means BIG! Our bigger bulbs produce bigger, better and bolder flowers.
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Designed for maximum beauty, this mix combines the most striking colours with the greatest visual impact. The irises are especially charming, doubling as gorgeous cut flowers for any florist-in-the-making.
- Height (cm): 45cm
- Bulb Size (cm): 6/+cm
- Blooms: June
- Quality Assurance: our spring bulbs are sourced directly from the finest growers in the UK and the Netherlands, selected for size, quality and reliability.
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
Royal blue petals with a golden yellow streak, this classic garden favourite sure s a welcome sight in early spring. This short flowering variety pops up amongst the snowdrops and is a much welcome splash of colour.
- Height (cm): 15cm
- Bulb Size (cm): 6/+cm
- Blooms: February/April
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
Containing a vivid mixture of different coloured Iris varieties, this pack is ideal for adding early colour to your garden to produce the start of your spring-flowering display. A great value bundle, these mighty flowers look great planted alongside Snowdrops and Winter Aconites.
- Height (cm): 15cm
- Bulb Size (cm): 6/+cm
- Blooms: February/ April
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
Pointed petals arising from a deep green stem, these creamy white flowers are flushed with soft lavender-blue stripes and deeper blue freckles. Appearing earlier than some other Iris varieties these will help to add longevity of flower starting off your spring borders with much-anticipated colour.
- Height (cm): 12cm
- Bulb Size (cm): 6/+cm
- Blooms: January/ March
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
Plum-coloured petals that are accentuated by the wonderful patterned inside. A great variety for adding colour to the start of the new year.
- Height (cm): 15cm
- Bulb Size (cm): 6/+cm
- Blooms: February/ March
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
Producing dramatic, richly coloured blooms, the deep velvety tones accented with warm golden-yellow bronze markings create a captivating addition to borders and beds. Reminiscent of the tiger's eye gemstone they deliver a vibrant display attractiving bees, butterflies and other pollinators.
- Height (cm): 50cm
- Bulb Size (cm): 7/8cm
- Blooms: June/ July
Making bulb planting easier, quicker and cleaner, our bulb planter is the ideal tool for helping you plant your larger spring-flowering bulbs.
- Made of high quality steel
- Automatic release on handle
- Duroplast coating - impact, elastic, abrasion, and corrosion resistant
- Perfect for planting larger flower bulbs such as daffodils, tulips, alliums, hyacinths and more
The ultimate tool for quickly and easily planting your spring bulbs and wildflower plants. High-quality, durable plastic handle securely fitted to a stainless steel blade, the robust design is ideal to assist in planting your plants and bulbs into beds, borders and grassland.
Specifically designed to help bulbs establish in pots and borders, without the risk of the bulbs rotting, providing an open and free-draining soil structure.
- Ideal for planting with Narcissi, Crocus, Hyacinths and other spring-flowering bulbs
- Universal bulb planting fibre
- 500gm bag - This pack is sufficient for 3 x 1-litre pots
The ultimate tool for planting quickly and easily your plants and bulbs. A quality, solid ash handle securely fitted to a hardened carbon steel head, the traditional design is ideal to assist in planting your plants and bulbs into beds, borders and grassland.
- Powder coated and heat treated carbon steel head
- Weatherproofed ash wood handle
- Hammer finish, powder coated head for improved rust resistance
- Perfect for planting wildflower plug plants and small bulbs
Our bulbs are sourced directly from the finest growers, and selected for size, quality & reliability
An under-rated spring-flowering bulb, Iris appear early spring, sometimes even before the first snowdrops! Adding beautiful splashes of colour into your garden our Iris Surprise collection provides great value containing a minimum of 4 varieties selected by us.
Our flowering bulb fertiliser has been specifically designed to help your spring-flowering bulbs flower to their full potential. Whether you are establishing in pots or containers, sprinkle a small amount into each hole prior to planting your bulbs. Also suitable for use in early spring to encourage your bulbs to flower well in the following season.
- Tailored to give your bulbs all the nutrients they need
- Can be mixed with compost or Bulb Fibre
- NPK - 12.11.18 + MgO
- Recommended coverage: 5kg per 200sqm. Apply at 25g/sqm
- Not suitable for use with Wildflower Bulbs
Our bulb planting essentials pack has been put together for the ease of ensuring quick planting and a great display. The bulb planter will help you plant the bulbs with ease whilst the fibre will ensure the bulbs do not rot when planted into pots or containers. Using the bulb fertiliser will ensure your bulbs have all the nutrients they need whilst establishing.
- 1 x Bulb Fibre
- 1 x Bulb Planter
- 1 x Bulb Fertiliser
Iris Bulbs FAQs
Why Grow Iris Bulbs
Irises are gorgeous, medium-to-tall flowers with a unique and beautiful shape, bearing three downwards-drooping sepals known as ‘falls’ and three upright petals known as ‘standards’. In addition to their shape, irises bear some of the brightest blooms one could ask for, making them perfect for those in need of some extra colour.
How to Grow Iris Bulbs
When planted outside, irises are best planted in early autumn. While some species can tolerate shade, the best way to grow them is in full sunlight, buried about 5-10cm deep in well-drained soil. Irises are wonderful flowers to plant in large groups and dot among other plants- planting them under a tree canopy makes for a particularly stunning sight. Make sure they have 5-10cm of space apart from each other.
While irises are very low-maintenance perennials, some may find that certain species, particularly Iris reticulata, lose their lustre over a few years, in which case they may need replacing. In addition, those with cats may wish to avoid these flowers.
What Species & Styles Of Iris Bulbs Are There?
There are a variety of irises in different colours. If you want a bright, sunny combination of colours for the summertime, check out the ‘Dutch Symphony’, a combination of brilliant white and golden yellow petals that has a truly regal appearance. Meanwhile, the ‘Blue Pearl’ iris is by far the best example of the iris flower’s potential for a rich, vibrant colouration, blooming in a deep indigo blue accented by yellow spots on the inner petals- the ‘Rosario’ shares a similar pattern, but with a softer lilac colouration- it’s also one of the few iris species that blooms in spring rather than summer. And if you want something completely non-traditional, the Yellow-Flag Iris, as mentioned above, is a wetlands flower that’s relatively tall-growing- it can even be planted in shallow water!
Fun Facts About Iris Flower Bulbs
Where to begin with the iris trivia…? Well, let’s start with the name: iris means ‘rainbow’ in Greek, and Iris refers to the Greek messenger of the gods and personification of rainbows. Furthermore, the ‘iris’ is the name for the coloured section of the eye- no wonder that it’s also the name of this coloured little flower!
The flower itself has its own significance: it’s a symbol of faith and hope- and in some cases, heraldry! The wild-growing Yellow-Flag Iris is believed to be the basis of the fleur-de-lis, originally a symbol of nobility used in France, now a commonly-seen symbol in designs and architecture everywhere.
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We’re dedicated to making the highest quality, professional outdoor products available to everyone to truly make the most of their outdoor spaces - lawns, gardens, landscapes, equine, sports and agriculture. Trusted by over 200,000 happy customers with a reputation for professional quality, world-class service and outstanding value for everyone, since 2002.
We take quality seriously, supplying products you can trust. Our grass seed is DEFRA-certified for purity and germination, utilising the highest quality cultivars recommended by the Sports Turf Research Institute. Wildflower products are of known UK provenance and flower bulbs are sourced directly from the finest growers in the UK and the Netherlands.
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