GILLYWEED, rare, 5-7cm, PH 7.9-8.4.  Lots of water, little sunlight.  Slimy grey-green bushels.  Effects: Temporary growth of gills and webbed
extremities.  Used in Gillywater.

VALERIAN ROOT
(sprigs), valeriana officinalis is a
sedative, 5ft, plant 1/8 down, PH 4.5-5.0. Seven hours of sun daily. White
flowers.  Cats are attracted.  Muggle aware. 
Root used in potions – Draught of Living Death, Forgetfulness Potion.

KNOTGRASS, symbolic, 5cm- 4m, PH 6.1 -7.3, plenty of
water, lots of sunlight.  Summer plan,
colored white pink or green. Relationship plant from weddings to fertility,
used in Polyjuice Potion.

DITTANY, romantic and healing, 20-30cm, PH 6.6-7.3 warmth and sunlight, 13
degrees C. Lightly water, only water dry soil. 
Used in Wiggenweld Potion.