When it comes to naming my favorite flower, I’m pretty hard-pressed to do so but irises rank near the top. Right now, they are out in their glory with both diminutive and understated blooms as well as those adding confirmation to the Big Bang theory with blossoms big enough to bowl one over.

Legend claims Iris to be the messenger of the gods and the rainbow linking the earth to other worlds. Throughout recorded history, the iris has appeared in myths, legends, heraldry, tapestries and as a religious symbol. It was the flower of both priests and princes and white irises were once planted on the graves of ancient soldiers.

Of the 200 plus species, three are most commonly grown in New England gardens. They are the tall-bearded, Siberian and Japanese irises. Iris flowers vary greatly in shape, color and size but their overall structure is similar. Each flower consists of three upper petals called standards and three lower or outer sepals referred to as falls. Irises are divided into two major groups, those which arise from rhizomes, which are horizontal stems growing at or slightly below the soil surface, and those growing from bulbs.

Iris peach

Peach iris. Photo by dmp, 2019

Some gardeners lament the relatively brief annual flowering period of irises. And it is true that even in good years weather-wise you cannot expect more than two or three weeks of a spectacular show. These folks can be comforted to some extent by choosing early, mid-season and late species and varieties of irises so the blooming period is prolonged. I like to think about it more like a special holiday one looks forward to each year. It just wouldn’t be appreciated as much if it occurred more often. And, irises are just too magnificent to be taken for granted.

Iris bearded

Bearded irises at UConn. Photo by dmp, 2019

Bearded irises are fairly adaptable to soil type but demand a well-drained site and full sun for most spectacular bloom. They prefer soils amended with organic matter and with a pH of around 6.5 so add limestone if your soil is acidic. Contrary to popular belief, the bearded iris is a heavy feeder. Provide them with ½ cup of an all-purpose organic or chemical fertilizer per large clump in early spring and half as much in mid-July after their dormant period. They can be divided any time from July 4th until Labor Day. Growth from new fans will be from the leaf side so set them in the direction you want them to grow. Rhizomes can be covered with soil but never more than one inch deep. Leave the tops of the rhizomes exposed on the surface if a thin layer of mulch will be applied.

Iris Cinnamon Girl

Iris ‘Cinnamon Girl’ with amsonia and lupines. Photo by dmp, 2009

Siberian irises are native to Central Europe and Manchuria, not Siberia as the name may imply. These plants produce a multitude of tiny rhizomes forming very dense clumps of slender grass-like leaves. Because the rhizomes are so small, iris borers are not tempted by them. Siberian irises can go a long time without division but you will get more flowers if you divide every 3 to 4 years.

Siberian irises

Siberian irises, Photo by dmp, 2018

Japanese irises look finicky but are quite easy to grow. They prefer a rich, organic, acidic soil. Rhizomes are set 2 inches deep. Japanese irises also need good drainage but they are not drought tolerant. A moisture retentive soil or supplemental irrigation during dry periods will give you best results.

Jap iris

Japanese irises in white garden with beauty bush in the background. Photo by dmp.

The petite crested iris (I cristata) is named for the raised crest along the centerline of each fall. This species tolerates part shade and should be fertilized regularly because it only produces short feeder roots. Give it a rich soil and it will thrive.

iris cristata 3

Iris cristata with sweet woodruff. Photo by dmp, 2019.

Bulbous I. reticulata in blue and violet shades along with sunshine yellow I. danfordiae are planted in the fall for very early spring blooms. A well-drained soil and protected site will provide you with earliest color.

iris reticulata

Iris reticulata blooms in early spring. Photo by dmp.

While their season of blooms is not long, irises can be quite spectacular and are a colorful and eye-catching addition to any perennial planting.

Here’s to a great gardening season,

Dawn P.

Here it is more than halfway through the month of June and I still don’t have my
whole vegetable garden planted yet. The continuous supply of cool, wet weather
we have been experiencing for the past couple of months has made conditions
perfect for slugs but not for many vegetables. I planted a 4 foot row of
radishes back around the first week in May and they did germinate quickly but
then the seedlings just sat there as the soil became saturated with rainfall.
Slugs ate about two-thirds of them and all the rest (except for one perfect
radish that I had on my salad today) were so stress that they are now being to
bolt (form seed) so that will be it for the spring radish crop. I will plant
more in September.

Bolting spinach in front, tetragonia coming along nicely behind it.

Same goes for the spinach I planted. Piddling, stunted, yellowish plants will not
produce even enough greens for one meal. Thankfully I also planted some New
Zealand spinach (Tetragonia tetragonoides), which is not a true
spinach but produces leaves that taste similar. It is very slow to germinate,
taking 2 to 3 weeks. Some of those seeds rotted too but since this plant
tolerates heat, there is still time to plant some more seeds. Also, I am
starting some Malabar spinach (Basella alba) plants. They do well in summer heat and form long vines so they will
be places next to a fence as the peas start to die back. I have heard that they
have a distinct flavor that you either love or hate, and also that they are
mucilaginous so stir fries seem like a good use for them.

In the overall scheme of things, I think I will accept the extra rainfall and be
grateful for no forest fires, massive flooding, and that the recent Springfield
to Southbridge, MA tornado missed my house by about 5 miles. Every day now I
drive past some of the devastating damage that was left in its wake – huge
trees splintered and tossed like toothpicks, damaged roofs, destroyed buildings
not to mention the impact on human lives and livelihoods. It was a little nerve
wracking the week after the tornado when our neighborhood began to be pummeled
by hail and we quickly checked the news for any ominous forecasts. The cannas
showed the most hail damage emerging with tattered leaves, but many other
plants, like these tiger lilies, have abrasions on their leaf surfaces.

Small spots are from last week's hail storm.

Narrow, vertical leaved plants were unscathed so I can now enjoy the huge blooms of my
Japanese irises. I don’t think there exists is an iris that I don’t like. From
the March blooms of the netted iris (Iris reticulata), through April’s I.
, and May and June’s finale of crested (I cristata), bearded (I.
germanica), Siberian (I. siberica), and finally now, the Japanese irises (I.
kaempferi). Speaking of which there were some exceptionally lovely ones at
bloom at Elizabeth Park in Hartford, CT yesterday.

Irises, yarrow and lamb's ears at Elizabeth Park

After attending a meeting in Hartford, I found myself totally unable to control the
impulse to stroll through Elizabeth Park in mid-June which is when their many,
wondrous rose-covered archways are in full bloom and coveted, I am sure, by
many a bride for unforgettable wedding photos. If at all possible, do go for a
visit to Elizabeth Park, named after Charles Pond’s wife.

Mr. Pond was a wealthy industrialist who bequeathed his estate to the city of
Hartford and requested that it be named for his wife. It was decided that a rose
garden would be most pleasurable for the people living in Hartford and that was
the beginning of the planting of some 15,000 rose bushes.

Rose arch at Elizabeth Park

I must say that after touring the very lovely and fragrant rose gardens at
Elizabeth Park and also the well-designed annual beds and perennial gardens,
that Charles’s wife, Elizabeth, must have been incredulously loved and I am so
grateful for the gift of botanical commemoration he bestowed upon her. We
mortals get to feast on such a heavenly vision each June with the roses all
opening to her goodness and beauty. If you have any time in the next week or
so, do go to Elizabeth Park. You will be glad that you did.

Stop and smell the roses!