Iris Flowers from the Netherlands are in lovely blues and yellows.
The Dutch Irises have the following values:
I bought a packet of brand new bulbs on 20 November 2010 (above picture 1).
I planted them on 2 occasions and in 5 different locations.
The purpose is to find out how far I can stretch the flowering time. And in this way, I can plan our flower garden landscape properly.
My Garden Condition:
Lowest night temperature (minus 6°C) was on 1-4-2011
Mid-day from 10 (lowest) to 34°C (highest)
Frequent rain shower
North side of the garden in front of the garden hedge
Receiving Autumn to Spring sunshine
6 bulbs (depth of 2 inch) were planted on the vary day was bought (above picture 2).
Monitoring Seed Bulbs Development
from 20-11-2010 to 31-5-2011 (192 days)
* 1st seed was sprouted on 16-1-2011, the day 57 (above picture 3).
* Two young plants appeared on 7th February, the day 79 (picture 4).
* 3 young Iris plants were standing behind a blooming yellow Fritillaria-lutea on 5th April, the day 136 (above picture 5-7).
* 1st flower shoot came on 14th May, the day 175 (picture 8).
* Iris flowers buds developments (picture 9-11) and the first blossom was born under rain shower on 16th May, the day 177 (picture 12).
* Under strong sunlight the Iris would turn into dark blue (picture 13).
* Two completed organic Iris flowers were shown on 18 May, the day 179 (picture 14).
* Support is required when the plants are tall (picture 15&16).
* A silvery blue half opened and one fully opened Irises appeared on 20 May when the sun was mild (picture 17&18).
* Two honey Bees rested on the tender flower petals under temperature 20-24°C from the day 181 to the day 182, and on the day 184 (picture 19-20, 22).
* Discovered a hole on the petal on 23 May (picture 21).
* Flower stem was 57cm (22.5 inch) in height, and the total plant height reached 66cm (26 inch), measured from ground level (picture 23).
* On 31 May 2011 the first flower was gone (picture 24).
Center of the garden besides the goldfish pond;
and next to a wild Lupin shrub
Receive full sun power
* 3 bulbs sowing on 5-3-2011 (below picture 25).
* All sprouted on 9 April, the day 35 (picture 26).
* Strong plants shown on 18 May, the day 74 (picture 27).
* Sparkling blue Iris came on 20 June, the day 107 (picture 28).
Center of the garden, behind roses and poppies
Receiving full sun
* Young plants came on 19 May, the day 75 (below picture 29).
* 2 Iris were blooming on 14 June 2011 (picture 30).
Center south side of the garden, backing by a dwarf Azalea tree
* Started seeds on 5-3-11 (above picture 31).
* Flowering on 20-6-2011, the day 107 (picture 32).
Border of the South side of the garden in front of the poppies; and besides a crocosmia lucifer shrub
Receive mid-spring sun light
* 8 bulbs were inserted on 5-3-2011 (above picture 33).
* Aphids pest came on the budding day; 12-6-2011, the day 99 (picture 34&35).
* Two widely opened Irises were shown on 14 June, the day 101 (picture 36).
* 5 in full bloom on 20 June, the day 107 (above picture 37).
* Last unopened flower shown on 2 July was sitting right in front of the garden hedge (picture 38).
Location 1: First Iris came on the day 177
Location 2: Three Irises were in full bloom on the day 107
Location 3: Two flowers in bloomed on the day 101
Location 4: Two plants were blooming on the day 107
Location 5: Five flowers were in full bloomed on the day 107
If two flowers blooming together in one bud (above picture 39); remove the faded flower as soon as possible; otherwise; the second flower could not expand (picture 40).
Alternatively; you can also sprout the bulbs in house in mid-February; and
transfer them in the garden pots later in the early March. In this way,
you can enjoy your blue flowers in the early July.