Diff: Graham Thomas

{{Cultivar infobox

{{Cultivar infobox

| cultivar = [[Graham Thomas]]

| cultivar = [[Graham Thomas]]

| selling_names = Graham Thomas; Ausmas

| selling_names = Graham Thomas; Ausmas

| class = English shrub rose

| class = English shrub rose

| breeder = David Austin

| breeder = David Austin

| introduced = 1983

| introduced = 1983

| colour = Rich yellow

| colour = Rich yellow

| bloom_form = Fully double cupped blooms

| bloom_form = Fully double cupped blooms

| fragrance = Lightly scented in RHS notes

| fragrance = Lightly scented in RHS notes

| repeat_bloom = Free-flowering from early summer to late autumn in RHS notes

| repeat_bloom = Free-flowering from early summer to late autumn in RHS notes

| height = RHS lists about 1-1.5 m as shrub

| height = RHS lists about 1-1.5 m as shrub

| spread = RHS lists about 1-1.5 m

| spread = RHS lists about 1-1.5 m

| hardiness = RHS H6 for UK conditions

| hardiness = RHS H6 for UK conditions

| disease_resistance = RHS lists possible black spot, rust, dieback, powdery mildew, and other rose issues

| disease_resistance = RHS lists possible black spot, rust, dieback, powdery mildew, and other rose issues

| rrd_notes = No cultivar should be treated as immune to [[Rose Rosette Disease]].

| rrd_notes = No cultivar should be treated as immune to [[Rose Rosette Disease]].

| parentage = Use ARS/Modern Roses before adding detailed parentage

| parentage = Use ARS/Modern Roses before adding detailed parentage

| patent = Ausmas/PBR naming should be checked before propagation or commercial use

| patent = Ausmas/PBR naming should be checked before propagation or commercial use

| best_for = Yellow shrub rose, mixed borders, UK gardens, short climber training where suitable

| best_for = Yellow shrub rose, mixed borders, UK gardens, short climber training where suitable

}}

}}

== Graham Thomas ==

== Graham Thomas ==

Graham Thomas is an English shrub rose with important UK source coverage. It should be recommended with disease caveats and regional expectations, not as a universal low-maintenance yellow rose.

Graham Thomas is an English shrub rose with important UK source coverage. It should be recommended with disease caveats and regional expectations, not as a universal low-maintenance yellow rose.

=== Growing notes ===

=== Growing notes ===

In UK-style conditions, RHS guidance is directly relevant. In humid US summers, black spot management may be more important. In small spaces, account for arching shrub habit.

In UK-style conditions, RHS guidance is directly relevant. In humid US summers, black spot management may be more important. In small spaces, account for arching shrub habit.

=== What to photograph ===

=== What to photograph ===

* Whole plant from several feet away, including support or container.

* Whole plant from several feet away, including support or container.

* A fresh bloom and an older bloom.

* A fresh bloom and an older bloom.

* Leaf upper and lower surfaces.

* Leaf upper and lower surfaces.

* Cane base, graft or own-root shoots if visible.

* Cane base, graft or own-root shoots if visible.

* Any disease, mite, herbicide, or RRD-like symptoms with dates and weather context.

* Any disease, mite, herbicide, or RRD-like symptoms with dates and weather context.

=== Common cautions ===

=== Common cautions ===

* Can be trained differently depending on climate and support.

* Can be trained differently depending on climate and support.

* Yellow roses can fade or scorch in heat, so regional tips are valuable.

* Yellow roses can fade or scorch in heat, so regional tips are valuable.

* Match advice to region, root system, and rose class before pruning or treating.

* Match advice to region, root system, and rose class before pruning or treating.

* Use [[Regional Rose Care Tips]] and local extension or RHS guidance for climate-specific adjustments.

* Use [[Regional Rose Care Tips]] and local extension or RHS guidance for climate-specific adjustments.

=== Community tips ===

=== Community tips ===

* Browse tips for this cultivar: https://roses.iwiki.net/tips?cultivar=Graham+Thomas

* Browse tips for this cultivar: https://roses.iwiki.net/tips?cultivar=Graham+Thomas

* Add a tip only if it names the region, zone or climate cue, root type when known, and what worked.

* Add a tip only if it names the region, zone or climate cue, root type when known, and what worked.

* Upvote tips that are specific and honest about tradeoffs; report unsafe pesticide or propagation advice.

* Upvote tips that are specific and honest about tradeoffs; report unsafe pesticide or propagation advice.

Use controls lawfully: Current local product label/register wins for any pesticide, fertiliser, or soil amendment use.

Use controls lawfully: Current local product label/register wins for any pesticide, fertiliser, or soil amendment use.

=== Sources ===

=== Sources ===

* [RHS: Rosa Graham Thomas](https://www.rhs.org.uk/plants/90507/rosa-graham-thomas-%28-ausmas-%29-%28s%29/details)

* [RHS: Rosa Graham Thomas](https://www.rhs.org.uk/plants/90507/rosa-graham-thomas-%28-ausmas-%29-%28s%29/details)

* [World Federation of Rose Societies: Hall of Fame](https://www.worldrose.org/hall-of-fame/)

* [World Federation of Rose Societies: Hall of Fame](https://www.worldrose.org/hall-of-fame/)

* [RHS: Award of Garden Merit](https://www.rhs.org.uk/plants/trials-awards/award-of-garden-merit)

* [RHS: Award of Garden Merit](https://www.rhs.org.uk/plants/trials-awards/award-of-garden-merit)

* [UC IPM: Roses diseases and abiotic disorders](https://ipm.ucanr.edu/home-and-landscape/roses-diseases-and-abiotic-disorders/)

* [UC IPM: Roses diseases and abiotic disorders](https://ipm.ucanr.edu/home-and-landscape/roses-diseases-and-abiotic-disorders/)

[[Category:Cultivars]]

[[Category:Cultivars]]

[[Category:Cultivar Profiles]]

[[Category:Cultivar Profiles]]

[[Category:Regional Notes]]

[[Category:Regional Notes]]