Carver nodded. "Of course. Thank you!"
She waited for Sally to get the basket, waved again, and then left to go pick flowers. There were only two dwarf corpse flowers blooming, but some chunks of a full size one would easily fill out space and still get the job done. Next came the henbane, then a random assortment of forget-me-lots and other various wild flowers that would go well with the corpse flowers. If anybody asked, she wouldn't have to explain the forget-me-lots specifically and just pretend they were all meant to go together.
She dropped the forget-me-lots with Shock, threw together two bouquets with the dwarf corpse flowers as the centerpieces and the extra chunks tucked between the other plants, and then went home to set them up in the two highest-traffic areas of the lab.
Jewel found her making sure the second bouquet sat right in the chemistry flask she'd grabbed as a vase. Their conversation was short; Carver fed her the same story about "noticing" the blooms, then begged off to go return the basket and henbane to Sally. She didn't bother to ask permission for a sleepover, as she was counting on the Doctor being too distracted to argue with either of them anyway.
A quick trip to Jack's house -- she was relieved when Sally answered the door -- and then back to the treehouse. She climbed up the ladder and down the slide, because why not.