Darwin Perennials 2027 Catalog

CROP SCHEDULE & USES 1-QT. (10-CM) POT, 1 PLANT PER POT

PLANT GROWTH REGULATORS

PINCHING AFTER TRANSPLANT

PESTS AND FUNGAL DISEASES

2 TO 3-GAL. (25 TO 30-CM) POT, 3 PLANTS PER POT 8-10 weeks from bare root in Spring

USDA HARDINESS ZONES

1-GAL. (15-CM) POT, 1 PLANT PER POT

BLOOM MONTHS March to October

HEIGHT

No

No

Not sensitive

Not recommended 8-10 weeks from bare root in Spring

16-18 in. (41-46 cm)

5-9

No

No

Not sensitive

Not recommended 8-10 weeks from bare root in Spring

8-10 weeks from bare root in Spring

26-32 in. (66-81 cm)

5-9

March to October

No

No

Not sensitive

Not recommended 8-10 weeks from bare root in Spring

8-10 weeks from bare root in Spring

28-31 in. (71-79 cm)

5-9

March to October

No

No

Not sensitive

Not recommended 8-10 weeks from bare root in Spring

8-10 weeks from bare root in Spring

28-30 in. (71-76 cm)

5-9

March to October

6-8 wks

10-12 wks

12-14 wks

10-12 in. (25-30 cm)

4-9

April to May

No

PGRs generally not needed

Pythium and rhizoctonia can result from overwatering. Pythium and rhizoctonia can result from overwatering.

6-8 wks

10-12 wks

12-14 wks

10-12 in. (25-30 cm)

4-9

April to May

No

PGRs generally not needed

No

PGRs generally not needed

Watch for crown rot if overwatered.

Not recommended Rooted: 6-8 wks

10-12 wks

16-18 in. (41-46 cm)

4-9

April to May

Unrooted: 10-14 wks Rooted: 8-10 wks

Unrooted: 16-18 wks Rooted: 10-12 wks

Unrooted: 19-22 wks Rooted: 12-14 wks

10-12 in. (25-30 cm)

6-9

May to October

Recommended PGRs generally not needed

May experience root rot diseases under poor growing conditions. Aphids.

PGRs generally not needed

Not particularly sensitive.

24 wks; requires vernalization

24 wks; requires vernalization

Not recommended 6-8 in.

4-9

February to April

Only if pinching not done in the liner stage.

(15-20 cm)

14-16 wks for Summer to Fall flowering

26-29 in. (66-74 cm)

6-9

July to November

Not recommended 12-14 wks for Summer to Fall flowering

None

PGRs not needed Pythium can result from overwatering. Aphids can also be a problem.

Unrooted: 14-16 wks Rooted: 7-8 wks

Unrooted: 16-19 wks Rooted: 9-11 wks

Unrooted: 19-22 wks Rooted: 12-14 wks

16-18 in. (41-46 cm)

4-9

April to September

PGRs generally not needed

Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Thielaviopsis, pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids, fungus gnats. Watch for crown rot if overwatered.

Once for smaller pot sizes, twice for larger containers.

Unrooted: 14-16 wks Rooted: 7-8 wks

Unrooted: 16-19 wks Rooted: 9-11 wks

Unrooted: 19-22 wks Rooted: 12-14 wks

10-12 in. (25-30 cm)

5-8

April to September

PGRs generally not needed

Once for smaller pot sizes, twice for larger containers.

7-10 wks

9-11 wks, 1-3 ppp 10-12 wks, 3-5 ppp 10-12 in. (25-30 cm)

6-9

March to July

PGRs generally not needed

A final pinching 8 to 10 weeks before flowering will help to increase flower count.

7-10 wks

9-11 wks, 1-3 ppp 10-12 wks, 3-5 ppp 14-18 in. (36-46 cm)

6-9

March to July

Recommended PGRs generally not needed

7-10 wks

9-11 wks

10-12 wks

16-18 in. (41-46 cm)

7-9

Year round depending on location

PGRs generally not needed

Not necessary if pinches provided in liner

7-10 wks

9-11 wks, 1-3 ppp 10-12 wks, 3-5 ppp 12-15 in. (30-38 cm)

6-9

March to July

Recommended PGRs generally not needed

Typically not required

PGRs generally not needed

Not recommended 9-11 wks

12-14 wks

14-17 in. (36-43 cm)

5-9

June to August

Typically not required

PGRs generally not needed

Watch for crown rot if overwatered.

7-10 wks

9-11 wks

Not recommended 14-16 in. (36-41 cm)

5-9

March to October

6-8 wks

9-11 wks

10-12 wks

10-12 in. (25-30 cm)

5-9

Year round, depending on location

Typically not required

PGRs generally not needed

Not particularly sensitive. Use well-drained media.

FINISHING GUIDE | 157

Powered by