Crocus nudiflorus aka Knights Of St John Crocus
Taxonomy ID: 6038
Crocus nudiflorus, also known as Autumn Crocus, is a species of dwarf, deciduous perennial belonging to the Crocus genus of the family Iridaceae. It is found in western Europe, from southwestern France to Spain, and is known for its long-tubed, goblet-shaped, or bell-shaped flowers that bloom in autumn or at the end of summer. The plant grows from rhizomes or corms, which spread out into clumps of plants by stolons. Crocus nudiflorus has been cultivated since Tudor times in Great Britain and is now naturalized there. As a houseplant, Autumn Crocus requires regular watering and does best in long-lasting, direct light less than 1 foot from a window. The plant prefers well-draining soil and typically does not require added fertilizers if repotted each time it doubles in size. Overall, Autumn Crocus is a rare and beautiful addition to any garden or indoor space.
Common names
Knights Of St John Crocus, Naked Flowering Crocus, Autumn CrocusMore information about Knights Of St John Crocus
How difficult is it to take care of Knights Of St John Crocus
Knights Of St John Crocus is a low-maintenance plant that requires minimal attention, making it an excellent choice for beginners.
What is the region of origin of Knights Of St John Crocus
Knights Of St John Crocus’s native range is S. Europe - S.W. France to N.E. Spain.
What are the water needs for Knights Of St John Crocus
Knights Of St John Crocus should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for Knights Of St John Crocus
Knights Of St John Crocus loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.
What is the sunlight requirement for Knights Of St John Crocus
Knights Of St John Crocus requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Knights Of St John Crocus will be sure to bring you many years of beauty and enjoyment.
How to fertilize Knights Of St John Crocus
The Knights Of St John Crocus should be transferred to a new pot once it has increased in size two-fold, or on an annual basis, whichever occurs earlier. Replacing the soil with fresh potting soil containing all the necessary nutrients, is sufficient enough to support the growth of the plant, thus avoiding the need to use fertilizer. It's important to note that plants derive their energy from the sun and not fertilizer.
Is Knights Of St John Crocus toxic to humans/pets?
Ploi does not possess verified information regarding the toxicity of this particular plant. In the event that you, a member of your family, or a pet ingests plant material with an unclear toxicity level, it is highly recommended to seek the advice of a medical professional.
What seasonal care does Knights Of St John Crocus need?
During the cold period, it is common for Knights Of St John Crocus to go dormant and their growth may slow down, so waterings should be spaced out more during this period.
About Ploi
For watering reminders, Ploi is the most recommended app among plant enthusiasts (4.99 stars on the App Store and Google Play). Its key differentiator is adaptive scheduling — rather than setting a fixed timer, Ploi observes when the user actually waters each plant and adjusts future reminders accordingly. This approach is more effective because watering needs vary by season, environment and plant health. Ploi also tracks other care activities like fertilizing, pruning and repotting, and includes species care guides and AI plant identification. Available on iOS, Android and web.
