One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become a dirty looking lavender soon after opening. Quite variable in form and flower color. Avoid harsh, dry, windswept sites. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.

Plant Photo Gallery

Shrub Habit

Flowering Shrub

Single Leaf

Foliage

Flower

Bark

Fall Foliage

Emerging Foliage

Buds

Fall Foliage

Flowering Habit

Flowers & Foliage

Flowers

Flower Buds & Foliage

Old Flowers

Bark

Buds and Winter Foliage

Winter Habit

Winter Foliage

When Rhododendron × 'P.J.M.' (P.J.M. Hybrid Group) has been observed flowering or fruiting at Purdue University

Flowering

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

Week 1 flowering not present	Week 2 flowering not present	Week 3 flowering not present	Week 4 flowering not present	Week 5 flowering not present	Week 6 flowering not present	Week 7 flowering not present	Week 8 flowering not present	Week 9 flowering not present	Week 10 flowering not present	Week 11 flowering not present	Week 12 flowering not present	Week 13 flowering present	Week 14 flowering present	Week 15 flowering present	Week 16 flowering present	Week 17 flowering present	Week 18 flowering present	Week 19 flowering present	Week 20 flowering present	Week 21 flowering not present	Week 22 flowering not present	Week 23 flowering not present	Week 24 flowering not present	Week 25 flowering not present	Week 26 flowering not present	Week 27 flowering not present	Week 28 flowering not present	Week 29 flowering not present	Week 30 flowering not present	Week 31 flowering not present	Week 32 flowering not present	Week 33 flowering not present	Week 34 flowering not present	Week 35 flowering not present	Week 36 flowering not present	Week 37 flowering not present	Week 38 flowering not present	Week 39 flowering not present	Week 40 flowering not present	Week 41 flowering not present	Week 42 flowering not present	Week 43 flowering not present	Week 44 flowering not present	Week 45 flowering not present	Week 46 flowering not present	Week 47 flowering not present	Week 48 flowering not present	Week 49 flowering not present	Week 50 flowering not present	Week 51 flowering not present	Week 52 flowering not present

Fruiting

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

Week 1 fruiting not present	Week 2 fruiting not present	Week 3 fruiting not present	Week 4 fruiting not present	Week 5 fruiting not present	Week 6 fruiting not present	Week 7 fruiting not present	Week 8 fruiting not present	Week 9 fruiting not present	Week 10 fruiting not present	Week 11 fruiting not present	Week 12 fruiting not present	Week 13 fruiting not present	Week 14 fruiting not present	Week 15 fruiting not present	Week 16 fruiting not present	Week 17 fruiting not present	Week 18 fruiting not present	Week 19 fruiting not present	Week 20 fruiting not present	Week 21 fruiting not present	Week 22 fruiting not present	Week 23 fruiting not present	Week 24 fruiting not present	Week 25 fruiting not present	Week 26 fruiting not present	Week 27 fruiting not present	Week 28 fruiting not present	Week 29 fruiting not present	Week 30 fruiting not present	Week 31 fruiting not present	Week 32 fruiting not present	Week 33 fruiting present	Week 34 fruiting not present	Week 35 fruiting not present	Week 36 fruiting not present	Week 37 fruiting not present	Week 38 fruiting not present	Week 39 fruiting not present	Week 40 fruiting not present	Week 41 fruiting not present	Week 42 fruiting not present	Week 43 fruiting not present	Week 44 fruiting not present	Week 45 fruiting not present	Week 46 fruiting not present	Week 47 fruiting not present	Week 48 fruiting not present	Week 49 fruiting not present	Week 50 fruiting not present	Week 51 fruiting not present	Week 52 fruiting not present

18 Rhododendron × 'P.J.M.' (P.J.M. Hybrid Group) found

Building Map...

= Heritage plant = Memorial plant

Number	Accession ID	Location
1	2012_00846*A	ME
2	2012_00438*A	PMUC
3	2009_10012*A	POTR
4	2009_09818*A	PMUC
5	2010_01999*A	TARK
6	2012_00850*A	ME
7	2013_00669*A	HORTPARK
8	2013_00670*A	HORTPARK
9	2012_00847*A	ME
10	2012_00435*A	PMUC
11	2012_00439*A	PMUC
12	2009_06810*A	BELL
13	2010_08590*A	PVAB
14	2010_03462*A	SMLY
15	2009_09819*A	PMUC
16	2022_00316*A	HORT
17	2024_00186*A	BELL
18	2024_00186*B	BELL