Paeonia Lactiflora. Festiva Maxima has been a popular Peony for over 150 years and holds the Royal Horticultural Society's Award of Garden Merit. This beauty starts with ruby-edged green buds, which open to unveil silky, light-pink petals. As the large blooms begin to unwind, this perennial produces dazzling blizzard-white double blooms with delicate raspberry highlights.The big, flouncy flowers are held upright on strong, erect stems from mid to late Spring. Let this fast grower spruce up your perennial beds, shrub borders, or snip and savor them indoors. Get ready for profuse blooms through the Spring that look wonderful in any weather! Easy to grow and deer resistant.