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Tropica

Crinum thaianum XL

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£26.99
Regular price
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£26.99
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Quick facts:

Rating:

Origin: Asia

Position in Aquarium: Background

Grows up to (cm): 200 cm

Pot Size: 9 cm

Growth rate: Slow

Common name:

Plant Sizes

The image of the plant you'll be receiving is just an example of what you can expect. Each plant is unique and may vary in size and shape, so it won't be an exact match to the photo. If we provide a size guide, keep in mind that it's just an estimate and that plants can vary in size depending on the time of year.

Our Delivery Promise To You

Express Delivery is our fastest and most reliable option. Orders are fully trackable, delivered within a one-hour time slot, and covered by our replacement guarantee if plants are damaged due to delivery delays. It’s ideal if you want extra peace of mind and plants arriving exactly as they left us.

Tracked 24 is a great value option and usually arrives within a couple of days.

Order before 4pm (Mon–Fri) for same-day dispatch.

Shipping starts from £4.99 for Tracked 24 and £6.99 for DPD Express.

Crinum thaianum, commonly called the Thai onion plant or water onion, is a striking bulb plant with long, ribbon-like leaves that can exceed a metre in length. The leaves are narrow, mid-green, and have a distinctive undulating edge that gives them a graceful, flowing quality in moving water. It produces an impressive open rosette of foliage that commands attention in larger aquascapes.

It is surprisingly easy to grow despite its eventual size. It thrives in low to medium light without CO2 injection and tolerates a broad range of water conditions from soft to moderately hard. Planting is straightforward: bury the lower portion of the bulb in substrate while leaving the upper half exposed. New growth emerges from the centre as older outer leaves are naturally shed.

This XL version supplies a larger, more established bulb than the standard offering, giving more immediate presence from planting day. Best suited to aquariums of 200 litres and above where the leaves have room to develop fully. Remove from the pot and plant the bulb directly into a nutrient-rich substrate, leaving the upper half of the bulb above the surface.

Crinum thaianum XL - Aqua Essentials
Crinum thaianum XL - Aqua Essentials
Crinum thaianum XL - Aqua Essentials

Product details

1. Go large

Xl Plants are the biggest plants available to hobbyists and sometimes extremely impressive, especially in the summer time. Pots are typically 9cm+ but the range is fairly limited so if you see one you like, best to go for it.

Why is the range limited in the winter?

Plants grow much slower due to the weather and the cost to heat gigantic greenhouses. As a result, in the cooler months plants are typically 30-40% smaller than they are in the warmer months.

2. Planting up

Due to their size, they're best positioned towards the back of your aquarium. Of course, some of them will be better tied onto wood or rock (like Anubias). It is possible to leave these plants in their pots if you prefer, but we always recommend that where possible, you take them out of their pots and rockwool, and plant them in a nutrient rich soil. Bear in mind the plants may have extensive root structure but this can be trimmed prior to planting.

3. Feeding

How much food do they need?

Due to their size, larger plants need much more food than the 5cm potted plants so this has to be considered when planting.

What fertilisers should I offer?

We always recommend using both a nutrient rich fertiliser and a liquid carbon for all plants. Use Neutro T as a liquid fertiliser and Neutro CO2 for your carbon. Both are available in big bottles and if you are injecting pressurised CO2, sway the Neutro T for Neutro+.

Are root tabs needed?

If you want to get the best from your plants, so they stay strong, grow faster and produce better colours then yes. Use TerraTabs for best results. Insert 3 under each XL plant every 4 months.

We're environmentally friendly

  • 1. Sustainable Packaging

  • 2. Fast Delivery

  • 3. Guarantee

Your plants will be wrapped with recyclable Honey Comb wrap - sounds cool because it is :). It interlocks which means we don't need to use tape either, reducing our impact on the environment.

Not only is delivery fast with DPD Express but it's also green as they offset all the carbon their vehicles produce. Guilt free delivery which we're very proud of...

We guarantee you'll be happy with your order. But if you're not, please contact us so we can resolve. We are 100% here to help and will always do our best to resolve any issues - that's a promise.

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