Aconitum napellus

Common Name : monkshoodType : Herbaceous PerennialHabit : BushyFoliage : DeciduousHeight : 0.5-1 metresSpread : 0.5-1 metresFlower colour : Violet BlueFlowering from : Julyto AugustFoliage colour : GreenHardiness : H5
Hardy in most places throughout the UK even in severe winters -15° to -10°
Sunlight : Part ShadeMoisture : Moist but well-drainedSoil : Acid / Neutral / AlkalineSeason of interest : SummerTo be Sheltered Fragrant

A. napellus is an upright tuberous perennial to 1.5m tall, with deeply divided, dark green leaves and tall spires of violet-blue, hooded flowers in mid and late summer.


2018.- The 3 plants came out well in mid-April. Spoiled by heavy rains in early June, installed supports (a little late). First flowers on July 10th. Full bloom in late July. At the beginning of September, two specimens were removed, one split and put in 3 pots, to make room for displaced alba thalictrums.

2017.- The 3 plants start to come out at the beginning of March. Floral buttons mid-April. Beginning of June: I have to tutor! First flowers on July 5th. Full bloom from mid-July, floral shoots in all directions. A little disappointing this season.

2016.- March: just starting out at the end of March. Moved the specimen too close to the honeysuckle to the north. Late April: beautiful shoots. July: the specimen at the back grows very high in the lattice of the honeysuckle! First flowers (back specimen) on July 15th. Full bloom early August for 2 specimens out of 3. Flowering ended early September. The specimen at the front has a yellow foliage, does not bloom!

2015.- Well out late March 2015. End of March 2015: anti-slugs. Put supports in place mid-April. Pinched heads early June. July: the 2 feet of the bottom reach the bottom of the lattice and hang on it! Finally, it is a voluble plant. Faded early September, pruned halfway up. Maybe plant another perennial in the middle to support.

2014.- Planting year: scarce flowering.

See on garden plan