Crocus tommasinianus

Crocus Tommasinianus – Cobalt violet; outside silvery grey. Tommasinianus is the best crocus for naturalising; it will increase quickly from both bulbs and seeds.

Crocus Tommasinianus will flower from February to March, slightly earlier than some varieties. Make sure you leave the foliage to die back to allow the bulbs to flower again the following year, this should be around April.

Crocus are wonderful perennial flowers that can create luscious carpets of flowers during spring in the gap between the early flowering snowdrops and the first tulips.

Growing Crocus bulbs

Crocus bulbs do not like to be water logged. A good sandy soil is ideal for crocus, preferably in a sunny position. They will grow under trees whilst there is no canopy and the sun is getting through. If your soil is heavy, you may need to add some compost or sand to improve drainage.

Plant crocus bulbs in the autumn, a minimum of six to eight weeks before the first frost. The depth of planting depends on the size of the corms. In general, plant small corms 2 inches deep and large corms 3 inches deep. Water the crocus bulbs well after planting, and water again if the weather is dry. Once the flowers have faded, deadhead them to encourage them to bloom the following year.

Crocuses can be grown in pots. Choose a pot that is at least 6 inches deep and fill it with a well-draining potting mix. Pots dry out easily, so ensure that they crocus bulbs are well watered.

Crocuses naturalise well in your garden. Plant crocus bulbs in areas where the soil will not be disturbed, such as in your lawn or under trees. If you are planting in a lawn you can cut an envelope in the turf and slide a few in. Making sure the small point in the centre is pointing up. Make sure the foliage has died back before the first mow some time in late April.

Crocuses are deer-resistant, making them great for country gardens where deer can be a problem. Although, you may have to add a little extra protection as they are a favourite snack for mice and squirrels.