Philadelphus lewisii ‘Blizzard’ (Blizzard mockorange) makes a wonderful hardy shrub for part shade in a cold climate. They have pretty white blossoms and a wonderful fragrance. My Philadelphus has been a reliable bloomer, even after cold winters and spring frosts.
This Philadelphus lewisii ‘Blizzard’ (Blizzard mockorange) is an especially hardy version of mock orange that grows well in a northern garden. Even after a cold zone 3 winter, the shrub is full of these pretty white blooms. I thought that I might not get flowers this year, since we had a number of late spring frosts, but the blizzard mockorange has excelled itself with an abundance of these pretty blossoms. This has been a very reliable bloomer for me.
This closeup shows how many gorgeous flowers there are on the end of each Philadelphus stem. Behind there are flashes of blue peeking through from the Campanula poscharskyana (Serbian bellflower) and a frond of Osmunda regalis (royal fern).
In the above photo you can see the pure white petals with the golden centres. The mockorange blooms come after the spring flowering shrubs, but before the Hydrangea. In my zone 3 garden that is at the end of June, beginning of July. They are a good choice if you are looking for an early summer flowering shrub.
My Blizzard mockorange is about over a metre tall (4 feet) and 1.5 metres (5 feet) wide. It might grow a bit more still, but this shrub maintains a compact size. The branches of Philadelphus lewisii ‘Blizzard’ have a very nice red colour, that remains attractive after the leaves have fallen off the shrub in fall. The branching pattern of ‘Blizzard’ is more elegant than my Philadelphus virginalis (basic mockorange). It has a number of shorter branches, with the smaller branches coming off at right angles opposite to each other, whereas the Philadelphus virginalis tends to have a smaller number of very long branches, in a looser shape, that come off at awkward angles, looking ungainly.
Almost every branch end has a set of pretty white flowers. This shrub has a multitude of blooms, even in part shade. This garden bed gets about 2 hours of sun a day, and some dappled light as the trees sway overhead. I’ve been very pleased with its performance here.
The flowers of Blizzard mockorange has a faint scent that is beautiful, but it is not strong enough to perfume a large area of the garden. The fragrance is not quite as powerful as other Philadelphus. You have to bend over and sniff the blossoms to enjoy the sweet smell. The shrub is planted right next to my patio by my back door, so it is easy to enjoy the flowers and scent up close.
Philadelphus lewisii ‘Blizzard’ is a prolific bloomer, with beautiful white flowers, even after extra cold weather. With its attractive branching pattern, and overall shape, it looks good, even when not in bloom. I can recommend this for a zone 3 garden, if you are looking for a compact, early summer flowering shrub. In the photo below, you can see how Blizzard looks as the buds are just opening.
You can read more information about this mockorange shrub in this post.